Table 1:

Baseline characteristics of eligible participants

Variable		Mean (SD) in HD group	Mean (SD) in LNG group	Mean (SD) total	P value (chi-square)
Age		28.8 (6.2)	28.8 (5.6)	28.8 (5.9)	0.874
Weight		66.7 (12.1)	67.4 (11.4)	67.0 (11.7)	0.493
Height		159.4 (5.8)	160.0 (5.5)	159.6 (5.7)	0.257
BMI		26.3 (4.6)	26.3 (4.2)	26.3 (4.4)	0.893
Number of pregnancies		1.8 (1.1)	1.7 (1.1)	1.8 (1.1)	0.484
Number of childbirth		1.5 (0.7)	1.4 (0.8)	1.5 (0.8)	0.862
Number of abortions		0.3 (0.7)	0.3 (0.6)	0.3 (0.6)	0.252
Frequency (percentage) of prior contraceptive method	Condom	142 (54%)	167 (48.8%)	269 (51.4%)	0.239
	Conventional	121 (46%)	133 (51.2%)	254 (48.6%)