PHQ-9
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Nine-item questionnaire assessment of depressive symptoms assessed on a scale of 0 to 3
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Prevalence of moderate–severe depression; mean total score
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Validated in primary care [29]
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WHO disability assessment schedule
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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
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Total disability score; quality adjusted life years; number of days out of work
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Validated for international use [36]
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Client service receipt inventory
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Questionnaire to collect data on the utilisation and costs of health care and lost productivity (including that of caregivers)
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Costs of illness (direct and indirect)
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Previously used in the study settings, an adapted version will be used based on an international study on perinatal depression [37]
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Multidimensional scale of perceived social support
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12-item questionnaire to measure perceived social support of the mother
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Perceived social support of the mother; total score
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Used in the study settings [22]
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Exclusive breastfeeding
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24-hour maternal recall using the WHO definition of exclusive breastfeeding
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Proportion of infants exclusively breastfed
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Used in the study settings [38, 39]
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Height and weight of infant
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Digital scales for weight and tape measure for height (height mats)
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Height in centimetres and weight in grams
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Extensively used in the study settings [22, 40]
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Serious adverse events (SAEs)
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Specifically designed questionnaire for the trials
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Proportion of SAEs
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Specifically designed for the trials
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