Table 1.

Shows Sample Size Determination for Study Participants in 2018/19

Variables	AOR	% of Cases	% of Controls	Required Sample of		Total Sample Size
				Cases	Controls
Use of contraceptives	2.05831	74.5	58.7	95	283	378
History of STI	2.17	38.2	22.1	82	244	326
Age of 1st exposure to sexual intercourse> 15	3.727	45.5	18.3	29	85	114
Number of sexual partner	6.08336	58.2	21.1	17	50	67