Determinants of Pregnancy-Induced Hypertension among Mothers Attending Public Hospitals in Wolaita Zone, South Ethiopia: Findings from Unmatched Case-Control Study

Table 1

Factor analysis to determine sample size using different associated factors of pregnancy-induced hypertension.

Associated factors	Power	Cases to controls ratio	Odds ratio	Percent of controls exposed (%)	95% CI	Sample size			Reference
						Cases	Controls	Total
Residence	80	1 : 2	3.7	34.5	(1.9–7.1)	33	66	99	[13]
Fruit use	80	1 : 2	5.1	12.3	(2.4–11.1)	30	59	89
Multiple pregnancy	80	1 : 2	4.1	4.5	(1.8–9.6)	86	171	257
BMI of mothers ≥25 Kg/m^2 (prepregnancy)	80	1 : 2	5.5	2.7	(1.1–27.6)	84	167	251