Table 1.

Baseline characteristics of Sino-Implant Study participants tested for STIs at one or more study visits (N=254) by study arm, Kingston, Jamaica

	Immediate insertion arm (N=123) n (%)	Delayed insertion arm (N=131) n (%)
Single, never married	79 (64.2)	98 (74.8)
Did not complete high school	41 (33.3)	33 (25.2)
Hormonal contraception in the past month	29 (23.6)	36 (27.5)
More than one partner in the past month	8 (6.5)	7 (5.3)
Four or more alcoholic drinks in 1 day in the past week	4 (3.6)	5 (4.2)
Ever received money or gifts in exchange for sex	6 (4.9)	8 (6.1)
Positive prostate-specific antigen test	34 (27.6)	30 (22.9)
Self-reported unprotected sex in the past two days	21 (17.1)	19 (14.5)
	Median (IQR)	Median (IQR)
Age (years)	25 (21–29)	25 (21–30)
Parity	2 (1–3)	2 (1–3)