The moderating role of partners’ education on early antenatal care in northern Ghana

Table 4 Effect modification of the association between planned pregnancy and early antenatal care by partners’ education

	Unplanned pregnancy		Planned pregnancy		PR (95% CI) for planned pregnancy within strata of partners’ education
	N with/without outcome	PR (95% CI)	N with/without outcome	PR (95% CI)
Partner has less than secondary education	55/77	1.00 (Reference)	128/109	1.19 (0.93,1.52); p = 0.169	1.19 (0.93,1.52); p = 0.169
Partner has secondary or higher education	14/26	0.84 (0.52,1.36); p = 0.476	82/24	1.64 (1.26,2.12); p < 0.001	1.95 (1.25,3.04); p = 0.003

Measure of effect modification on additive scale: RERI (95% CI) = 0.61 (0.07,0.99); p = 0.010
Measure of effect modification on multiplicative scale: ratio of PRs (95% CI) = 1.64 (1.01,2.70); p = 0.033
Model III: PRs are adjusted for age, marital status, place of residence, employment, health insurance, household size, parity mothers’ education and COVID-19 pandemic

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