Table 6.

Supplementary analysis: General Estimating Equation for Logistic Regression of study arm allocation (intervention vs. control) and psychosocial health scores, clustering for area of residence (rural vs. periurban) and adjusted for baseline score and maternal age: OR = odds ratio, NNT = number needed to treat, CI = confidence interval

Psychosocial scores a	OR (95% CI)	NNT (95% CI)
Psychosocial distress score (HSCL-25) b	0.86 (0.85–0.86)	33 (33–33)
Wellbeing score (MHC-SF)	2.01 (1.39–2.89)	6 (4–13)
Self-efficacy score: Self-care sub-score	2.02 (1.22–3.35)	6 (4–25)
Self-efficacy score: Infant care sub-score	1.55 (0.68–3.54)	13 (−11–5)
Self-efficacy score: Total	1.14 (0.84–1.56)	50 (−20–13)
Infant stimulation score	1.2 (0.90–1.60)	33 (− 50–17)

^aIncreases in the HSCL-25, MHC-SF, self-efficacy and infant stimulation scores indicate greater distress, greater wellbeing, greater self-efficacy, and greater maternal engagement in infant stimulation activities, respectively. ^b Analyses with HSCL-25 anxiety and depression sub-scores were not significant