Husbands’ involvement in antenatal care and its association with women’s utilization of skilled birth attendants in Sidama zone, Ethiopia: a prospective cohort study

Table 3 Homogeneity tests for Odds Ratio of factors (layer variable), in Sidama zone, Southern Ethiopia, 2015

Layer variable (by categories)		Chi-Squared	df	Asymp. Sig. (2-sided)
Place of residence (2 categories.)	Breslow-Day	9.808	1	0.002
Place of residence (2 categories.)	Tarone’s	9.806	1	0.002
Women’s age (3 categories)	Breslow-Day	21.613	2	0.000
Women’s age (3 categories)	Tarone’s	21.455	2	0.000
Women’s education level (4 categories)	Breslow-Day	4.114	3	0.249*
Women’s education level (4 categories)	Tarone’s	4.112	3	0.250*

*p-value > 0.10, indicating homogeneity of the odds ratios among categories of a particular variable

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