Aim: To evaluate the psychometric performance of the Malay version of the Medical Outcome Study (MOS) Social Support Survey among a sample of postpartum Malay women in Kedah, North West of Peninsular Malaysia.
Materials and methods: 354 women between 4 to 12 weeks postpartum were recruited for the validation study. They were given questionnaires on socio-demography, the Malay versions of the MOS Social Support Survey, the Edinburgh Postnatal Depression Scale (EPDS) and the 21-items Beck Depression Inventory-II (BDI-II). 30 of the participants, who were bilingual, were also given the original English version of the instrument. A week later, these women were again asked to complete the Malay version of MOS Social Support Survey.
Results: The median number for item 1 (the single item measure of structural support) was 3 (inter-quartile range = 2 - 4). Extraction method of the remaining 19 items (item 2 to item 20) using principle component analyses with direct oblimin rotation converged into 3 dimensions of functional social support (informational support, affectionate support / positive social interaction and instrumental support) with reliability coefficients of 0.93, 0.74 and 0.72 respectively. Overall the scale displayed good internal consistency (Cronbach's alpha = 0.93), parallel form reliability (0.98) and test-retest reliability (0.97) (Spearman's rho; p<0.01). Its validity was confirmed by the negative correlations between the overall support index (total social support score) and all the three dimensions of functional support with the Malay versions of EPDS and BDI-II. The overall support index also displayed low but significant correlations with the single measure structural social support in the instrument (Spearman's rho = 0.14; p <0.01).
Conclusions: The MOS Social Support Survey demonstrated good psychometric properties in measuring social support among postpartum Malay women in Kedah, North West of Peninsular Malaysia and could potentially be used as a simple instrument in primary care settings.