Table 2 Pakistan and India trial outcome assessments
Instrument | Description | Outcome | Contextual validity |
|---|---|---|---|
PHQ-9 | Nine-item questionnaire assessment of depressive symptoms assessed on a scale of 0 to 3 | Prevalence of moderate–severe depression; mean total score | Validated in primary care [29] |
WHO disability assessment schedule | 12-item questionnaire for measuring functional impairment over the last 30Â days. In addition, two items assess the number of days the person was unable to work in these 30Â days | Total disability score; quality adjusted life years; number of days out of work | Validated for international use [36] |
Client service receipt inventory | Questionnaire to collect data on the utilisation and costs of health care and lost productivity (including that of caregivers) | Costs of illness (direct and indirect) | Previously used in the study settings, an adapted version will be used based on an international study on perinatal depression [37] |
Multidimensional scale of perceived social support | 12-item questionnaire to measure perceived social support of the mother | Perceived social support of the mother; total score | Used in the study settings [22] |
Exclusive breastfeeding | 24-hour maternal recall using the WHO definition of exclusive breastfeeding | Proportion of infants exclusively breastfed | |
Height and weight of infant | Digital scales for weight and tape measure for height (height mats) | Height in centimetres and weight in grams | |
Serious adverse events (SAEs) | Specifically designed questionnaire for the trials | Proportion of SAEs | Specifically designed for the trials |