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Table 2 Pakistan and India trial outcome assessments

From: The effectiveness and cost-effectiveness of the peer-delivered Thinking Healthy Programme for perinatal depression in Pakistan and India: the SHARE study protocol for randomised controlled trials

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 30 days. In addition, two items assess the number of days the person was unable to work in these 30 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 Used in the study settings [38, 39]
Height and weight of infant Digital scales for weight and tape measure for height (height mats) Height in centimetres and weight in grams Extensively used in the study settings [22, 40]
Serious adverse events (SAEs) Specifically designed questionnaire for the trials Proportion of SAEs Specifically designed for the trials