Table 3. - Sociodemographic, behavioral and clinical characteristics of pregnant women recruited at the Basic Health Units of Coari city, Amazon, Brazil, in relation to CT infection.

Variables (n=100)	Chlamydia identification

	Negative (n=82)		Positive (n=18)		Total	P

	n	%	n	%
Age (years)						0,226^c
Mean ± SD	23.08 ± 6.36		21.15 ± 4.65		22.87 ± 6.24
Marital status						0.165^b
Single	16	72.7	06	27.3	22
Married/Stable union	66	84.6	12	15.4	78
Age at first sexual intercourse (years)						0.190^c
Mean ± SD	15.30 ± 2.33		14.55 ± 1.29		15.17 ± 2.19
Education (years)						0.392^a
< 9 (primary/intermediate)	41	50.0	11	61.11	52
≥ 9 (secondary/higher)	41	50.0	07	38.9	48
Number of sexual partners over a lifetime						0.491^b
1	17	85.0	03	15.0	20
≥ 2	65	81.2	15	18.8	80
Numbers of sex partners in last 12 months						0.022^b
1	67	87.0	10	13.0	80
≥ 2	15	65.2	08	34.8	20
Number of pregnancies						0.851^a
Primitive	39	81.2	09	18.8	48
>1gestation	43	82.7	09	17.3	52
Abortion story (n=52)						0.110^b
Yes	08	66.7	04	33.3	12
No	35	87.5	05	12.5	88
History of preterm birth (n=52)						0.578^b
Yes	07	87.5	01	12.5	8
No	36	81.8	08	18.2	44
Clinical complaints (n=69)
Pruritus	13	86.7	02	13.3	15	0.11^d
Vaginal discharge	35	77.8	10	22.2	45	0.55^d
Pelvic pain	30	85.7	05	14.3	35	0.27^d
Difficulty urinating	06	100	00	00	06	1.00^d
Pain after intercourse	01	50.0	01	50.0	02	0.05^d

N= Number of patients; Sd= standard deviation; ^aChi-square test; ^b Ficher’s exact test; ^c student test;^d binominal test