Table 1.

Comparison of basic characteristics between women with HIV and syphilis.

Variable	HIV (N = 93)		Syphilis (N = 355)		χ2	p
	N	%	N	%
Maternal age (years)
≤ 20	8	8.60	16	4.51	3.353	0.340
21–29	40	43.01	160	45.07
30–34	27	29.03	91	25.63
≥35	18	19.35	85	23.94
Education
Primary school	12	13.04	49	13.80	4.649	0.199
Junior middle school	36	39.13	177	49.86
High school	28	30.43	88	24.79
College	16	17.39	41	11.55
Missing data	1	/	/	/
Living area
Local	35	37.63	186	52.39	7.224	0.027
Floating population	58	62.37	169	47.61
Minority
Han	75	80.65	322	90.70	6.021	0.013
Others	18	19.35	33	9.30
Employment
Employed	65	69.89	253	71.27	0.068	0.795
Unemployed	28	30.11	102	28.73
Gravidity
1	20	21.97	70	20.00	1.347	0.510
2	25	27.47	80	22.86
≥3	46	50.55	200	57.14
Missing data	2	–	5	–
Parity
0	27	30.34	108	30.59	0.002	0.962
≥1	62	69.66	245	69.41
Missing	4	–	–
Number of Children
0	33	36.26	118	33.33	0.277	0.598
≥1	58	63.74	236	66.67
Missing data	2		1
Partner's infection
Yes	65	69.89	220	61.97	1.997	0.158
No	28	30.11	135	38.03
Timing of diagnosis
Before pregnancy	51	55.43	100	28.33	29.640	p <0.001
First trimester	26	28.26	158	44.76
Second trimester	7	7.61	72	20.40
Third trimester	4	4.35	17	4.82
After delivery	4	4.35	6	1.70
Missing data	1		2

Missing data were excluded.