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The translation and validation of the Postpartum Depression Screening Scale (PDSS) : towards improving screening for postpartum depression in English- and Afrikaans-speaking South African womenStruik, Melony 16 June 2012 (has links)
Postpartum depression is an illness that is frequently unreported and undetected for a variety of reasons and may be potentially devastating for the mother affected as well as her family. Routine screening of postpartum women enables health practitioners to detect symptoms of PPD early and provides an opportunity for early intervention which may improve the outcome and increase the mother’s chances of an earlier recovery. It is therefore important that reliable and convenient screening tools are available to health practitioners who have contact with postpartum women. The primary objective of this research was to make an Afrikaans version of an existing screening scale available – the Postpartum Depression Screening Scale (PDSS), designed specifically to encompass the multifaceted phenomenon of PPD. In accordance with this objective, the validity and reliability of the PDSS and its Afrikaans version was investigated in English- and Afrikaans-speaking South African mothers. A further objective of this study was to compare the performance of the PDSS with the Edinburgh Postnatal Depression Scale (EPDS) and the Quick Inventory of Depressive Symptomatology (QIDS-SR16). Various factors have been reported to be associated with the development of PPD. The final objective of this study was to explore the relationship between known risk factors for PPD and high scores on the PDSS amongst women in South African. A total of 365 South African mothers, between 4 and 16 weeks postpartum participated in this study. English-speaking mothers (n = 187) completed the PDSS, EPDS, QIDS, and a demographic and psychosocial questionnaire, while Afrikaans speaking mothers (n = 178) completed the respective Afrikaans versions of these questionnaires. A multiple translation method – Brislin’s back-translation method and the committee approach – was used to translate the PDSS and the QIDS into Afrikaans. An item response theory (IRT), Rasch analysis, was used to examine dimensionality, item difficulty, differential item functioning, and category functioning of the PDSS and the Afrikaans PDSS. Results reveal excellent person reliability estimates for the Afrikaans PDSS as well as for the PDSS in a South African sample. Both language versions performed reasonably well and the majority of items in the PDSS dimensions and the Afrikaans PDSS dimensions demonstrated fit statistics that supported the underlying constructs of each dimension. Some items were identified as problematic, namely Item 2, Item 25, Item 28, and Item 30. The item person construct maps show reasonably good spread of items. There were, however, persons that scored higher than the items could measure and an overrepresentation of items at the mean level. The Likert response categories proved to be effective for all the Afrikaans PDSS items and almost all the PDSS items. Results indicate that 49.7% of mothers screened positive for major PPD using the PDSS. A further 17.3% of mothers obtained scores indicating the presence of significant symptoms of PPD. Statistically significant correlations were obtained between total scores on the PDSS, the EPDS, and the QIDS-SR16. Stepwise multiple regression analysis identified 11 variables that were significantly associated with a high PDSS total score. These were a history of psychiatric illness, postpartum blues, feeling negative or ambivalent about expecting this baby, fearful of childbirth, infant temperament, antenatal depression in recent pregnancy, lack of support from the baby’s father, concern about health related issues regarding the infant, lack of support from friends, difficulty conceiving, and life stress. / Thesis (PhD)--University of Pretoria, 2012. / Psychology / unrestricted
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Assessing and Responding to Maternal Stress (ARMS) : antenatal psychosocial assessment in research and practiceDarwin, Zoe January 2013 (has links)
Background: Antenatal Psychosocial Assessment (APA) has recently been introduced into routine antenatal care, but the ways in which maternity service providers assess and respond to maternal stress are subject of debate. There is a lack of consensus on the instrument(s) of choice and lack of evidence regarding appropriate interventions. Further, national guidelines have not kept apace with the conceptual shift from ‘postnatal depression’ to ‘perinatal anxiety and depression’. Adopting the Medical Research Council Complex Interventions Framework, the ARMS research aimed to inform the development of interventions that support women who are experiencing, or at risk of, mild-moderate mental health disorder in pregnancy. Methods: A mixed methods approach was adopted. In the quantitative element (Study Part 1) participants (n=191) completed a questionnaire when attending for their first formal antenatal appointment, using a procedure and materials that had been previously tested in a pilot study. Details including mental health assessment and referrals were obtained from their health records, following delivery. In the qualitative element (Study Part 2) a sub-sample of women (n=22) experiencing high levels of maternal stress took part in up to three serial in-depth interviews during pregnancy and the early postnatal period.Findings: Maternal stress was found to be common. Using the Edinburgh Postnatal Depression Scale (EPDS) threshold of ≥10, approximately 1 in 4 women were classed as high depression (halving to 1 in 8 at the more conservative threshold of ≥13). Almost 1 in 3 women were classed as high anxiety, using the state scale of the State-Trait Anxiety Inventory (STAI-S, threshold ≥41), compared with 1 in 5 using the two-item GAD (threshold ≥3). Fewer than half of the women identified as high anxiety were identified by both measures. Factor analyses of the symptom measures were consistent with wider literature suggesting a three-item anxiety component of the EPDS; however, concurrent validation using regression analyses did not indicate that the EPDS could be used as an anxiety case finding instrument. Women reported that maternal stress had significant impact on their lives that may not be captured with existing clinical approaches. Women commonly found it difficult to self-assess severity of maternal stress and the assessment process could itself act as an intervention. The research provided the first validation of the depression case finding questions in UK clinical practice. The Whooley items completed in clinical practice identified only half of the possible cases identified by the EPDS, at both commonly adopted EPDS thresholds. Inclusion of the Arroll 'help' question as a criterion improved specificity of the assessment completed in clinical practice but substantially compromised sensitivity, missing 9 in 10 possible cases. Women’s mental health history and treatment history were similarly under-reported, particularly concerning anxiety. APA was introduced into routine clinical practice without attention to topics of relevance to women, context of disclosure or to provision of adequate resources for consistently responding to identified need. Women experiencing, or at risk of, mild-moderate disorder were thus usually ineligible for further support. Implications: Care pathways are needed that encompass both assessing and responding to maternal stress, where communication with health professionals, subsequent referral and management are addressed. The development, implementation and evaluation of low-cost resources embedded in such pathways are a priority and the research presented in the thesis offers a foundation on which to build.
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