Table 2.

Bivariate analysis of STIs and the variables (n = 31,028).

Variables	STI		p a
	Yes (3266)	No (27762)
	n (weighted %)	n (weighted %)
Age (years)			0.004
15–19	225 (15.5)	1,697 (84.5)
20–24	581 (12.6)	4,618 (87.4)
25–29	661 (11.7)	5,303 (88.3)
30–39	1,162 (11.3)	9,996 (88.7)
40–49	637 (9.6)	6,148 (90.4)
Area of residence			0.035
Urban	2,363 (11.5)	19,696 (88,5)
Rural	903 (10.1)	8,066 (89.9)
Wealth index			0.585
Very poor	819 (10.2)	7,408 (89.8)
Poor	846 (11.3)	6,941 (88.7)
Average	708 (11.8)	5,678 (88.2)
Rich	562 (11.9)	4,379 (88.1)
Very rich	331 (11.0)	3,356 (89.0)
Marital status			0.891
Unmarried	873 (11.2)	7,175 (88.8)
Married/cohabiting	2,393 (11.3)	20,587 (88.7)
Region of origin			<0.001
Metropolitan Lima	553 (13.1)	3,664 (86.9)
Rest of the coast	872 (9.0)	8,575 (91.0)
Mountains	1,221 (12.0)	8,816 (88.0)
Rainforest	620 (9.3)	6,707 (90.7)
Level of education			0.007
Preschool/primary	668 (9.8)	6,411 (90.2)
Secondary	1,537 (12.6)	11,792 (87.4)
Professional/Undergraduate/Postgraduate	1,061 (10.7)	9,559 (89.3)
Currently employed			0.115
No	1,131 (10.5)	10,490 (89.5)
Yes	2,135 (11.7)	17,272 (88.3)
Use of contraception			0.017
No methods used	1,012 (10.4)	8,721 (89.6)
Condom	446 (13.9)	3,180 (86.1)
Others	1808 (11.3)	15,861 (88.7)
Parity			0.217
No children	426 (12.6)	2,982 (87.4)
1–2 children	1723 (10.9)	14,803 (89.1)
3 ≥ children	1,117 (11.0)	9,977 (89.0)
MSP			< 0.001
Yes	81 (27.5)	259 (72.5)
No	3,185 (11.1)	27,503 (88.9)
EOSI			0.003
Yes	849 (13.5)	6,648 (86.5)
No	2,417 (10.7)	21,114 (89.3)

^aChi-square test.

MSP, Multiple Sexual Partners; EOSI, Early Onset of Sexual Intercourse; STI, Sexually Transmitted Infection.