<p>Osnovni cilj prikazanog istraživanja je bilo unapredivanje postojecih znanja o<br />psiholo&scaron;kom blagostanju putem ispitivanja multidimenzionalnosti konstrukta i<br />njegovih korelata. Proveravana je struktura multidimenizonog modela Caroll Ryff<br />prema kome psiholo&scaron;ko blagostanje obuhvata &scaron;est dimenzija: Samoprihvatanje, Svrha<br />života, Licni rast, Ovladavanje okruženjem, Autonomija i Pozitivni odnosi sa<br />drugima, te relacije tih dimenzija sa pretpostavljenim prediktorima i konsekventima.<br />U istraživanju je ucestvovalo 657 odraslih osoba (41,9% mu&scaron;kog i 58,1%<br />ženskog pola) sa teritorije Srbije, uzrasta od 18 do 89 godina. Kori&scaron;ceni su sledeci<br />instrumenti: Upitnik o demografskim karakteristikama konstruisan za potrebe<br />istraživanja, Skale psiholo&scaron;kog blagostanja, Skala zadovoljstva životom, Skala<br />pozitivnog i negativnog afektiviteta (PANAS), Upitnik za procenjivanje partnerske<br />afektivne vezanosti, Bekov inventar anksioznosti, Skala samosti&scaron;avanja, Skala<br />optimizma &ndash; pesimizma i Skala depresivne licnosti.<br />Rezultati sprovedenih analiza nisu potvrdili &scaron;estodimenzionalnost modela, ali<br />ukazuju na multidimenzionalnost psiholo&scaron;kog blagostanja, te je predložen<br />trodimenzioni model. Dalja ispitivanja korelata psiholo&scaron;kog blagostanja sprovedena<br />na ekstrahovanom trofaktorskom modelu su pokazala da je psiholo&scaron;ko blagostanje<br />znacajan prediktor subjektivnog blagostanja, anksioznosti i subjektivnih procena<br />fizickog zdravlja i materijalne situacije, dok su optimizam, pesimizam, depresivna<br />licnost i uzrast znacajni prediktori psiholo&scaron;kog blagostanja.</p> / <p>The main goal of the presented study was to extend the existing knowledge on the<br />psychological well-being though testing psychological well-being<br />multidimensionality and relationship with its correlates. The six-dimension Carol Ryff<br />model of the psychological well-being was used, which consists of the following<br />dimensions: Self-acceptance, Personal growth, Environmental mastery, Autonomy,<br />Purpose in life and Positive relations with others. Also included was a relationship<br />between psychological well-being and assumed predictors and consequences.<br />The research included 657 adults, aged between 18 to 89 years, from Serbia.<br />The following instruments were used: a questionnaire on socio-demographic<br />characteristics, Scales of Psychological Well-Being, Satisfaction with life scale, The<br />positive and negative affect schedule &ndash; PANAS, Experience of Close Relationships<br />Scale, Beck Anxiety Inventory, the self-silencing scale, Optimism &ndash; pessimism scale<br />and Depressive personality scale.<br />The results did not confirm the six-dimension model theory, but did indicate a<br />multidimensional structure of the psychological well-being. The three factor solution<br />was extracted, so the rest of study was conducted with three dimensional<br />psychological model. Analysis showed that psychological well-being is a significant<br />predictor of subjective well-being, anxiety and subjective assessment of physical<br />health and material state. The optimism, pessimism, depressive personality and age<br />are the significant predictors of psychological well-being.<br />&nbsp;</p>

<p>Oralno zdravlje predstavlja stanje zdravlja svih anatomskih i funkcionalnih delova usne duplje, jedan je od osnovnih elemenata blagostanja i važan pokazatelj kvaliteta života stanovni&scaron;tva. Podaci Svetske zdravstvene organizacije (SZO) ukazuju da je 15-20% svetskog stanovni&scaron;tva srednje životne dobi (starosti od 35 do 44 godine) pod rizikom od gubitka zuba, a oko 30% stanovni&scaron;tva starosti od 65 do 74 godine nema svoje zube. Oboljenja usta i zuba su jedan od vodećih javno zdravstvenih problema 21. veka u svetu i nalaze se na 4. mestu po visini tro&scaron;kova. Osnovni cilj ovog istraživanja je bio da se utvrdi stanje oralnog zdravlja odraslog stanovni&scaron;tva Srbije starosne dobi 20 i vi&scaron;e godina i evaluiraju činioci koji na njega utiču. Istraživanje predstavlja deo nacionalne studije &ldquo;Istraživanje zdravlja stanovnika Srbije&rdquo; za 2013. godinu Ministarstva zdravlja Republike Srbije, koja je sprovedena u vidu studije preseka na reprezentativnom uzorku od 13690 ispitanika (53,8% žene i 46,2% mu&scaron;karci). U istraživanju su kori&scaron;ćene tri vrste upitnika koji su dizajnirani u skladu sa upitnikom Evropskog istraživanja zdravlja. Svaki ispitanik stariji za jednu godinu ima 8% veću &scaron;ansu da svoje oralno zdravlje oceni kao lo&scaron;e (OR=1.08; 95% IP=(1.07-1.09); p=0,000). Ispitanici sa blagim depresivnim simptomima i depresivnim poremećajima imaju 2,04 odnosno 3,48 puta veću &scaron;ansu da svoje oralno zdravlje ocene kao lo&scaron;e u odnosu na ispitanike koji nisu depresivni (OR=2.04; 95% IP=(1.28-3.26); p=0,003) (OR=3.48; 95% IP=(1.14-10.59); p=0,028). Žene imaju 30% veću &scaron;ansu da pripadnu povoljnoj kategoriji poseta stomatologu u odnosu na mu&scaron;karce (OR=0.70; 95% IP=(0.63-0.78); p=0,000). Ispitanici sa nižim i srednjim obrazovanjem imaju 5,70 odnosno 2,45 puta veću &scaron;ansu da svoje zube operu povremeno u odnosu na visoko obrazovane (OR=5.70; 95% IP=(4.35-7.48); p=0,000) (OR=2.45; 95% IP=(1.91-3.13); p=0,000). Ispitanici najsiroma&scaron;nijeg sloja imaju 4,88, siroma&scaron;nog sloja 3,73, srednjeg sloja 2,52 i bogatog sloja 2,01 put veću &scaron;ansu da izgube 10 i vi&scaron;e zuba u odnosu na najbogatiji sloj (OR=4.88; 95% IP=(2.95-8.08); p=0,000) (OR=3.73; 95% IP=(2.42-5.75); p=0,000) (OR=2.52; 95% IP=(1.69-3.76); p=0.000) (OR=2.01; 95% IP=(1.38-2.91); p=0,000). Biv&scaron;i pu&scaron;ači i pu&scaron;ači imaju 1,43 odnosno 2,80 puta veću &scaron;ansu da izgube 10 i vi&scaron;e zuba u odnosu na nepu&scaron;ače (OR=1.43; 95% IP=(1.00-2.03); p=0,046) (OR=2.80; 95% IP=(2.08-3.76); p=0,000). Najučestaliji prediktori oralnog zdravlja su žene, starije stanovni&scaron;tvo, niže obrazovanje, nezaposleno i neaktivno stanovni&scaron;tvo, najsiroma&scaron;niji i pu&scaron;ači.</p> / <p>Oral health represents health status of all anatomic and functional parts of oral cavity, it is one of the basic elements of well-being and important quality of life indicator. According to the World Health Organization (WHO) 15-20% of world population aged 35-44 have risk of tooth loss, and about 30% population aged 65-74 does not have own teeth. Oral and dental diseases are one of the leading public health problems in 21st century and on the 4th place of the health care expenditure. The main aim of this research was to assess oral health of adult population in Serbia aged 20 years and older and to evaluate related factors. The research represents a part of &ldquo;National Health Survey in Serbia 2013&rdquo; implemented by The Ministry of Health of the Republic of Serbia, which was conducted as a cross-sectional study on the representative sample of adult population in Serbia. The study included 13690 examinees (53.8% females and 46.2% males). Three types of questionnaires which were designed according to the European Health Interview Survey were used. Every examinee older for one year had 8% greater odds to assess their oral health as bed (OR=1.08; 95% CI=(1.07-1.09); p=0.000). Respondents with mild depressive symptoms and depressive disorders had 2.04 and 3.48 times greater odds to assess their oral health as bed compared to one who were not depressed (OR=2.04; 95% CI=(1.28-3.26); p=0.003) (OR=3.48; 95% CI=(1.14-10.59); p=0.028). Females had 30% more odds to be in the category of affordable dental visit compared to men (OR=0.70; 95% CI=(0.63-0.78); p=0.000). Respondents with lower and middle level of education had 5.70 and 2.45 greater odds to brush their teeth occasionally compared to higher educated (OR=5.70; 95% CI=(4.35-7.48); p=0.000) (OR=2.45; 95% CI=(1.91-3.13); p=0.000). Respondents who belonged to the poorest class had 4.88, poorer 3.73, middle 2.52 and richer class 2.01 greater odds to lose 10 and more teeth compared to the richest (OR=4.88; 95% CI=(2.95-8.08); p=0.000) (OR=3.73; 95% CI=(2.42-5.75); p=0.000) (OR=2.52; 95% CI=(1.69-3.76); p=0.000) (OR=2.01; 95% CI=(1.38-2.91); p=0.000). Former smokers and smokers had 1.43 and 2.80 times greater odds to lose 10 and more teeth compared with non smokers (OR=1.43; 95% CI=(1.00-2.03); p=0.046) (OR=2.80; 95% CI=(2.08-3.76); p=0.000). The most frequent predictors of oral health are: women, elderly people, those with low educational attainment, unemployed, inactive and respondents who assessed their financial situation as poor and smokers.</p>

<p>UVOD: Početak multiple skleroze (MS) u dečijem uzrastu je dijagnostički i terapijski izazov. I ako rani početak MS-a uglavnom ukazuje na dobru kratkoročnu prognozu, neka deca razviju te&scaron;ku onesposobljenost, fizičku ili kognitivnu, a vi&scaron;e od 50% obolelih uđe u sekundarno progresivnu formu bolesti pre 30. godine života. Rana dijagnoza je neophodna za uvođenje imunomodulatorne terapije, kojom se obezbeđuje dobra dugoročna prognoza. CILJ: Analiza parametara koji bi omogućili ranu dijagnozu multiple skleroza sa ranim početkom u odnosu na simptome, sprovedene dijagnostičke procedure i tok bolesti. Sagledavanje inicijalnih kliničkih manifestacija multiple skleroze, prisustva ologoklonaliteta, nalaza MRI endokranijuma i njihovih osobenosti u dečijoj populaciji uz komparaciju sa inicijalnim kliničkim manifestacijama kod pacijenata obolelih od multiple skleroze u odraslom dobu. MATERIJALI METODE: Ova retrospektivno/ prospektivna studija obuhvata pacijente lečene na Klinici za neurologiju KCV u Novom Sadu u periodu od dvanaest godina, od januara 2003. godine do januara 2015. godine sa znacima i simptomima inicijalne demijelinacione bolesti CNS. Od ove kohorte izdvojeno je dve grupe pacijenata; prva grupa pacijenata kod kojih je bolest nastala pre 18. godine života, i druga grupa uzrasta od 20-55 godina. Pacijenti su epidemiolo&scaron;ki obrađeni prema godinama početka bolesti, polu, porodičnoj istoriji, simptomima na početku bolesti (inicijalni simptom), toku bolesti- pojavi drugog relapsa i vremena do pojave drugog relapsa, nalazu MRI, nalazu evociranih potencijala i prisustvo oligoklonalnih traka u likvoru. Tokom praćenja beleži se vreme do drugog relapsa i tip relapsa. Tražila se korelacija između kliničkih i dijagnostičkih rezultata sa brzinom pojave drugog relapsa. Za testiranje razlika između grupa kori&scaron;ćen je Pirsonov hi-kvadrat test, a za testiranje jačine povezanosti kori&scaron;ćeno je Kramerovo V. Neparametrijski podaci su obrađivani Men-Vitni U testom. REZULTATI: Od ukupnog broja ispitanika, u grupi pacijenata sa ranim početkom MS-a odnos ženskog i mu&scaron;kog pola je bio 1,3:1, a u grupi pacijenata sa uobičajenim početkom MS-a 2,2:1. Iz dobijenih rezultata vidimo da ima manje nego &scaron;to je očekivano pacijenata rođenih u mesecima decembru 4,6% i januaru (5,9%), a vi&scaron;e nego &scaron;to je očekivanu u mesecima martu (11,3%) i julu (10,6%), &scaron;to nije statistički značajno (p=0,726). Prema manifestaciji bolesti kod dece 17,6% ima polisimptomatski početak, a kod odraslih 37,6% ima polisimptomatski početak.Polisimptomatski početak statistički je značajno vi&scaron;e zastupljen kod odraslih pacijenata (p=0,020).Poremećaj piramidnog sistema (P=0,010) i senzorne smetnje (P=0,006) su zastupljeniji kao inicijalni stimptom u grupi odraslih.Nisu nađene statistički značajne razlike u zastupljenosti optičkog neuritisa (p=0,366 ili p&gt;0,05) i ataksije /stablarne simptomatologije (p= 0,791) u ove dve grupe. Najče&scaron;ći inicijalni simptom kod dece, gotovo u istoj razmeri su optički neuritis (35,3%) i ataksija (35,3%). U grupi odraslih pacijenata senzorne smetnje (41,6%) su najče&scaron;ći inicijalni simptom, odmah za njim sledi piramidna simptomatologija (37,6%). Prema nalazu broja lezija na MRI pregledu, u grupi ispitanika sa ranim početkom MS-a vi&scaron;e su zastupljeni oni sa manje od 4 lezije, nego &scaron;to je to slučaj u grupi odraslih. Odnos broja pacijenata sa 4-10 i preko 10 lezija simetričan je u obe grupe. Korelacija između doba početka MS-a i broja lezija viđenih na MRI je statistički značajna i neznatna (P=0,06). Nije nađena statistička značajnost u prisustvu lezija u korpusu kalozumu između ove dve grupe pacijenata ( P=0,920). Primenom Fi&scaron;erovog dvostranog egzaktnog testa koji je u ovom slučaju statistički značajan (p=0,034), možemo reći da se grupa sa ranim početkom MS-a i ona sa uobičajenim početkom statistički značajno razlikuju, tumefaktivne lezije su prisutnije kod ispitanika sa ranim početkom MS-a. Pozitivni oligoklonali su zastupljeniji u grupi odraslih pacijenata ( P= 0,018). U na&scaron;oj grupi ispitanika kada smo pratili vreme pojave drugog pogor&scaron;anja, najkraće godinu dana, u grupi dece 11 pacijenata (21,6%) nije imalo pogor&scaron;anje , dok je 40 pacijenata imalo pogor&scaron;anje (78,4%),. Medijana kod grupe dece za pojavu drugog &scaron;uba bolesti je 12 meseci. U grupi odraslih 22 pacijenta ( 21,8%) nije imalo drugi relaps tokom perioda praćenja, dok je njih 79 (78,2%) imalo drugi relaps. Prosečno vreme u grupi odraslih pacijenata do drugog relapsa je 9 meseci. U grupi dece ne postoje značajne razlike u odnosu broja lezija viđenih na inicijalnom MRI pregledu i vremenu pojave drugog relapsa ( p=0,884) Kod odraslih postoji značajna razlika u vremenu relapsa između grupe sa manje od 4 lezije i grupe sa 4-10 lezija (p=0,09).Korelirali smo pacijente sa pozitivnim i negativnim ologoklonalnim trakama u likvoru u obe grupe sa vremenom nastanka prvog pogor&scaron;anja, pri toj korelaciji nije dobijena statistički značajna razlika ni u grupi dece ( P= 0,598) ni u grupi odraslih (P=0,133). Kod ispitanika sa ranim početkom če&scaron;ća je pozitivna porodična anamneza, u vidu prisustva MS i drugih imunolo&scaron;kih bolesti( P =0,042). ZAKLJUČAK: Polisimptomatski početak je če&scaron;ći kod odraslih, pozitivne oliogoklonalne trake su ređe pozitivne kod dece, kod dece je najče&scaron;ći inicijalni simptom optički neuritis a kod odraslih senzitivne i motorne smetnje. Manje od 4 lezije se če&scaron;će javljaju kod dece na inicijalnom MRI pregledu, &scaron;to je najverovatnije povezano sa vremenom stvarnog početka bolesti i njenom kliničkom manifestacijom. Kod pacijenta sa ranim početkom MS-a duži je period do drugog pogor&scaron;anja. U grupi dece ne postoje statistički značajne razlike u odnosu broja lezija viđenih na inicijalnom MRI pregledu i vremenu pojave drugog relapsa. Kod odraslih postoji značajna razlika u vremenu relapsa između grupe sa manje od 4 lezije i grupe sa 4-10 lezija. Inicijalne manifestacije MS-a u dečijem uzrastu ne razlikuje se u mnogome od MS-a kod odraslih po karakteristikama i toku bolesti.</p> / <p>INTRODUCTION: Тhe onset of multiple sclerosis (MS) in childhood poses diagnostic and therapeutic challenges. Althougth the onset of MS in childhood typically predicts a fevoruable short/term prognosis, some children are severy disabled. Etiher physically or cognitively, and more then 50% are predicted to enter the secondary-progressive phase of the disease by the age of 30 years. Immunomodulatory therapies for MS and their safe application in children can improve long-therm prognosis. AIM: We saught to identifay clinical and diagnostic features in children wich inplicate to early diagnosis of MS in children. We aimd to determine the clinical features, cerebro spinal fluid, magnetic resonance imagin (MRI) features of children and their comparation with adult MS patients. METHODS: In this retrospective/prospective study we present data from 152 patients with clinical isolated syndrom (CIS) for the first time, which are obtained throught Clinic of Neurology , Clinical Centre of Vojvodina, Novi Sad from January 2003 to January 2015g. Patients were divided into two grups - in first group patients 51 with early onset of disease before 18 years, and second group patients with adult onset desease (20-55 year). Patients wer observed for a minimum one year. The common presenting symptoms, gender, MRI finding, oligoclonal band (OCB) and Visual evoked potential findings, corse of disease, family history were compared between the two groups and with thime of second relaps. To test the difference between groups was used Chi-square Pearson product moment test, and to test the strength of connection used is a Kramer V. Population data are processed Men-Whitney U test. RESULTS: Of the total number of respondents, in the Group of patients with early beginning MS the ratio of women and men was 1.3:1, and in the group of adult MS patients 2, 2:1. From the results we can see that fewer than expected has patients born in the months December ( 4.6%) and January (5.9%), and higher than expected in a March (11.3%) and July (10.6%), which is not statistically significant (p = 0,726). According to the manifestation of disease in children 17.6% has a polifocal onset, and in adults 37.6% has a polifocal onset. Polifocal beginning is significantly over represented in adult MS patients (p = 0,020). Motor disorder (P = 0,010) and sensory disabilities (P = 0.006) are more present as the initial manifestation illness in the adult. They not found statistically significant differences in the representation of optic neuritis (p = 0,366 or p &gt; 0.05) and ataxia (p = 0.791) in these two groups. The most common initial symptom in children, almost in the same scale are the optical neuritis (35.3%) and ataxia 6 (35.3%). In a group of adult patients sensory disturbances (41.6%) are the most common initial symptom, right behind him follows a motor disturbens (37.6%). According to the number of lesions on the MRI exam, in a group of subjects with early MS more are they less than four lesions, than is the case in the group adults. The ratio of the number of patients with 4-10 and over 10 symmetrical lesions in both groups. Correlation between the time of the beginning of the MS and the number of lesions seen on MRI is statistically significant and insignificant (P = 0.06). There was no statistical significance in the presence of lesions in the corpus callosum indicates between these two groups of patients (P = 0,920). Application of Fisher the exact test case that is in this case a statistically significant (p = 0.034). We can say that the group with the early start of MS and the one with the usual beginning of significantly different, tumefactiv lesions are present in patients with early onset MS, Positive oligoclonal bands are more present in a group with adult MS patients (P = 0.018). In our group of respondents when we track time appear another relapse, minimum one year, 11 children (21,6%) had no deterioration, while the 40 children had worsening (78,4%). The median at groups of children for the appearance of second relapse is 12 months. In the adult these 22 (21,8%) had another relapse for tracking period, while 79 (78.2%) had another relapse. The average amount of time in the adult patients relapse to another is 9 months. In a group of children there are no statistically significant differences in the relative number of lesions seen on the initial MRI examination and time show up another relapse (p = 0,884). In adults there is a significant difference in relapse time between groups with fewer than four lesions and groups with 4-10 lesions (p = 0.09). Pressures are patients with positive and negative ologoclonal bands in the cerebrospinal fluid in both groups with the time of occurrence of the first downturn, when the correlation is not get statistically significant difference in the children (P = 0.598) or in a group of adults (P = 0,133). In patients with early starting stacks is a negative family history, and often the presence of MS and other immunological diseases (P = 0,042). CONCULSIONS: Polisifocal beginning is more common in adults, positive oliogoklonalne bands are less positive in children, with children being the most common initial symptom is optic neuritis, in adult sensitive and motor disturbances. Tumefactiv lesions are present in patients with early onset MS. Less than four lesions are more common in children on the initial MRI examination, which is probably connected with the time of the real onset of the disease and its clinical manifestation n the group of children there are no statistically significant differences in relation to the number of lesions seen on MRI at the initial examination and the timing of another relapse. For adults there is a significant difference in time of relapse between the groups with less than 4 lesions and groups with 4-10 lesions. Children onset MS does not significantly differ from that it has been typically seen in adults in terms of major clinical manifestations and course of disease.</p>

<p>Gojaznost i fizička neaktivnost su među najznačajnijim faktorima rizika za hronične nezarazne bolesti, koje su vodeći javnozdravstveni problemi u svetu i kod nas. Cilj istraživanja je procena prevalencija gojaznosti, predgojaznosti i fizičke neaktivnosti u slobodno vreme kod odraslog stanovni&scaron;tva Vojvodine, kao i procena povezanosti demografskih, socio-ekonomskih i bihevioralnih faktora sa gojazno&scaron;ću i fizičkom neaktivno&scaron;ću u slobodno vreme. Istraživanje predstavlja deo Istraživanja zdravlja stanovni&scaron;tva Srbije iz 2013. godine koje je sprovedeno od strane Ministarstva zdravlja Republike Srbije, kao studija preseka na reprezentativnom stratifikovanom dvoetapnom uzorku. Istraživanjem je obuhvaćeno 3337 osoba uzrasta 20 i vi&scaron;e godina sa prebivali&scaron;tem u Vojvodini. Instrument istraživanja su bili upitnici konstruisani u skladu sa upitnikom Evropskog istraživanja zdravlja, a podaci o telesnoj masi i telesnoj visini su dobijeni merenjem. Rezultati istraživanja su pokazali da je u 2013. godini svaka četvrta odrasla osoba u Vojvodini bila gojazna, a svaka treća osoba predgojazna. U odnosu na 2000. godinu nije do&scaron;lo do značajnog povećanja prevalencija gojaznosti i predgojaznosti, mada su se prevalencije održale na visokom nivou. &Scaron;anse za gojaznost su rasle do 75-te godine života, a nakon toga opadaju. Najveću &scaron;ansu za gojaznost su imale osobe u braku ili vanbračnoj zajednici. Gojaznost je povezana sa socio-ekonomskim karakteristikama samo kod žena. Značajni prediktori gojaznosti kod žena su bili najniži nivo obrazovanja, lo&scaron; materijalni status i nezaposlenost/ekonomska neaktivnost. Biv&scaron;i pu&scaron;ači su imali oko dva puta veću &scaron;ansu za gojaznost u odnosu na pu&scaron;ače, dok je &scaron;ansa za gojaznost bila manja kod osoba koje su u poslednjih 12 meseci konzumirale alkohol. Fizička neaktivnost u slobodno vreme, kao i fizička neaktivnost u domenu transporta povećavaju verovatnoću za pojavu gojaznosti. Prevalencija fizičke neaktivnosti u slobodno vreme je bila veoma visoka (89%). &Scaron;anse za fizičku neaktivnost u slobodno vreme su se značajno povećavale sa staro&scaron;ću. Prediktori fizičke neaktivnosti su bili ženski pol, život u braku/vanbračnoj zajednici, nizak nivo obrazovanja i lo&scaron; materijalni status. Pu&scaron;ači su imali oko dva puta veću &scaron;ansu da budu fizički neaktivni u odnosu na nepu&scaron;ače, dok je stanovni&scaron;tvo koje je konzumiralo alkohol imalo manju &scaron;ansu da bude fizički neaktivno u slobodno vreme. Gojazne osobe, kao i fizički neaktivne osobe su lo&scaron;ije ocenjivale svoje zdravlje. Gojazne osobe (bez obzira na nivo fizičke aktivnosti) su imale oko 3,5 puta veću &scaron;ansu za pojavu multimorbiditeta u odnosu na osobe sa optimalnom telesnom masom koje su fizički aktivne u slobodno vreme. Gojazne osobe su imale četiri puta veću &scaron;ansu za arterijsku hipertenziju i skoro četiri puta veću &scaron;ansu za dijabetes u odnosu na normalno uhranjene osobe. Gojaznost i fizička neaktivnost u slobodno vreme su značajni javnozdravstveni problemi kod odraslog stanovni&scaron;tva u Vojvodini na &scaron;ta ukazuju visoke prevalencije, velika zastupljenost među vulnerabilnim kategorijama stanovni&scaron;tva, nejednakost u frekvenciji između različitih socio-ekonomskih kategorija stanovni&scaron;tva, preventabilnost, povezanost sa lo&scaron;ijom samoprocenom zdravlja i hroničnim bolestima.</p> / <p>Obesity and physical inactivity are one of the most significant risk factors for chronic noncommunicable diseases, which are one of the most important public health problems in the world and also in our country. The aim of the study was to evaluate the prevalence of obesity and leisure time physical inactivity among the adult population of Vojvodina, and also to evaluate the association of demographic, socio-economic and behavioral factors with obesity and leisure time physical inactivity. The study is part of the National Health Survey of Serbia, a cross-sectional study conducted in year 2013 by the Ministry of Health of Republic of Serbia on a representative stratified two-stage sample. The study included 3337 participants aged 20 and over who resided in Vojvodina. The instruments were questionnaires designed in line with the European Health Interview Survey questionnaire, and data on body mass and body height were measured. Results showed that in year 2013 every fourth adult person in Vojvodina was obese, and every third overweight. There was no increase in prevalences compared to year 2000, although they remained high. Odds of obesity increased until age 75, and afterwards decreased. The highest odds of obesity were among persons who were married or living with a partner. Obesity was associated with socio-economic factors only among women. The predictors of obesity among women were: low level of education, low wealth index and unemployment/economical inactivity. Former smokers had two times higher odds of obesity, compared to smokers, while persons who consumed alcohol in the last 12 months had lower odds to be obese. Leisure time physical inactivity, as well as transport related physical inactivity were important predictors of obesity. Prevalence of leisure time physical inactivity was very high (89%). With increasing age, odds of physical inactivity increased. Predictors of physical inactivity were female gender, being married or living with a partner, low level of education and low wealth index. Smokers had two times higher odds of physical inactivity in comparison to nonsmokers, while persons who consumed alcohol in the last 12 months had lower odds of physical inactivity. Obese and physically inactive persons were more likely to assess their health as average, poor or very poor. Obese persons (regardless of the level of physical activity) had three and a half times higher odds of multimorbidity compared to persons with healthy weight who were physically active. Obese persons had four times higher odds of arterial hypertension and almost four times higher odds of diabetes. Obesity and physical inactivity are important public health problems among the adult population in Vojvodina due to high prevalences in population, especially among vulnerable groups, inequality in frequency among different socio-economic groups, preventability and association with poor health perception and chronic diseases.</p>

<p>Klaster analiza ima dugu istoriju i mada se<br />primenjuje u mnogim oblastima i dalje ostaju<br />značajni izazovi. U disertaciji je prikazan uvod<br />u neglatki optimizacioni pristup u<br />klasterovanju, sa osvrtom na problem<br />klasterovanja velikih skupova podataka.<br />Međutim, ovi optimizacioni algoritmi bolje<br />funkcioni&scaron;u u radu sa neprekidnim podacima.<br />Jedan od glavnih izazova u klaster analizi je<br />rad sa velikim skupovima podataka sa<br />kategorijalnim i kombinovanim (numerički i<br />kategorijalni) tipovima promenljivih. Rad sa<br />velikim brojem instanci (objekata) i velikim<br />brojem dimenzija (promenljivih), može<br />predstavljati problem u klaster analizi, zbog<br />vremenske složenosti. Jedan od načina<br />re&scaron;avanja ovog problema je redukovanje broja<br />instanci, bez gubitka informacija.<br />Prvi cilj disertacije je bio upoređivanje<br />rezultata klasterovanja na celom skupu i<br />prostim slučajnim uzorcima sa kategorijalnim i<br />kombinovanim podacima, za različite veličine<br />uzorka i različit broj klastera. Nije utvrđena<br />značajna razlika (p&gt;0.05) u rezultatima<br />klasterovanja na uzorcima obima<br />0.03m,0.05m,0.1m,0.3m (gde je m obim<br />posmatranog skupa) i celom skupu.<br />Drugi cilj disertacije je bio konstrukcija<br />efikasnog postupka klasterovanja velikih<br />skupova podataka sa kategorijalnim i<br />kombinovanim tipovima promenljivih.<br />Predloženi postupak se sastoji iz sledećih<br />koraka: 1. klasterovanje na prostim slučajnim<br />uzorcima određene kardinalnosti; 2.<br />određivanje najboljeg klasterskog re&scaron;enja na<br />uzorku, primenom odgovarajućeg kriterijuma<br />validnosti; 3. dobijeni centri klastera iz ovog<br />uzorka služe za klasterovanje ostatka skupa.<br />Treći cilj disertacije predstavlja primenu<br />klaster analize u definisanju klastera<br />bihejvioralnih faktora rizika u populaciji<br />odraslog stanovni&scaron;tva Srbije, kao i analizu<br />sociodemografskih karakteristika dobijenih<br />klastera. Klaster analiza je primenjena na<br />velikom reprezentativnom uzorku odraslog<br />stanovni&scaron;tva Srbije, starosti 20 i vi&scaron;e godina.<br />Izdvojeno je pet jasno odvojenih klastera sa<br />karakterističnim kombinacijama bihejvioralnih<br />faktora rizika: Bez rizičnih faktora, &Scaron;tetna<br />upotreba alkohola i druge rizične navike,<br />Nepravilna ishrana i druge rizične navike,<br />Nedovoljna fizička aktivnost, Pu&scaron;enje. Rezultati<br />multinomnog logističkog regresionog modela<br />ukazuju da ispitanici koji nisu u braku, lo&scaron;ijeg<br />su materijalnog stanja, nižeg obrazovanja i žive<br />u Vojvodini imaju veću &scaron;ansu za prisustvo<br />vi&scaron;estrukih bihejvioralnih faktora rizika.</p> / <p>The cluster analysis has a long history and a<br />large number of clustering techniques have<br />been developed in many areas, however,<br />significant challenges still remain. In this<br />thesis we have provided a introduction to<br />nonsmooth optimization approach to clustering<br />with reference to clustering large datasets.<br />Nevertheless, these optimization clustering<br />algorithms work much better when a dataset<br />contains only vectors with continuous features.<br />One of the main challenges is clustering of large<br />datasets with categorical and mixed (numerical<br />and categorical) data. Clustering deals with a<br />large number of instances (objects) and a large<br />number of dimensions (variables) can be<br />problematic because of time complexity. One of<br />the ways to solve this problem is by reducing<br />the number of instances, without the loss of<br />information.<br />The first aim of this thesis was to compare<br />the results of cluster algorithms on the whole<br />dataset and on simple random samples with<br />categorical and mixed data, in terms of validity,<br />for different number of clusters and for<br />different sample sizes. There were no<br />significant differences (p&gt;0.05) between the<br />obtained results on the samples of the size of<br />0.03m,0.05m,0.1m,0.3m (where m is the size of<br />the dataset) and the whole dataset.<br />The second aim of this thesis was to<br />develop an efficient clustering procedure for<br />large datasets with categorical and mixed<br />(numeric and categorical) values. The proposed<br />procedure consists of the following steps: 1.<br />clustering on simple random samples of a given<br />cardinality; 2. finding the best cluster solution<br />on a sample (by appropriate validity measure);<br />3. using cluster centers from this sample for<br />clustering of the remaining data.<br />The third aim of this thesis was to<br />examine clustering of four lifestyle risk factors<br />and to examine the variation across different<br />socio-demographic groups in a Serbian adult<br />population. Cluster analysis was carried out on<br />a large representative sample of Serbian adults<br />aged 20 and over. We identified five<br />homogenous health behaviour clusters with<br />specific combination of risk factors: &#39;No Risk<br />Behaviours&#39;, &#39;Drinkers with Risk Behaviours&#39;,<br />&#39;Unhealthy diet with Risk Behaviours&#39;,<br />&#39;Smoking&#39;. Results of multinomial logistic<br />regression indicated that single adults, less<br />educated, with low socio-economic status and<br />living in the region of Vojvodina are most likely<br />to be a part of the clusters with a high-risk<br />profile.</p>