Screening for Chlamydia trachomatis in Egyptian women with unexplained infertility, comparing real-time PCR techniques to standard serology tests: case control study

Table 1 Comparison of the clinical and demographic characteristics between the unexplained infertility cases and the controls

Variable	Cases (n = 50)	Controls (n = 44)	p-values
Age (yrs)*	30.78 (19-41)	30.68 (19-40)	0.893
Body mass index (kg/m²)*	30.26 ± 2.21	31.07 ± 1.69	0.211
Duration of Infertility (yrs)*	3.93 (2.5-10)	5.0 (2-16)	0.041
< 5 years	26 (52 %)	31 (70.5 %)	0.068
≥5 years	24 (48 %)	13 (29.5 %)
Type of infertility
Primary	36 (72 %)	35 (79.5 %)	0.396
Secondary	14 (28 %)	9 (20.5 %)
Previous parity	9 (18 %)	6 (13.6 %)	0.564
Previous abortion	10 (20 %)	6 (13.6 %)	0.413
Previous ICSI/IUI	17 (34 %)	9 (20.5 %)	0.308
Anti C.trachomatis IgM + ve	3/50 (6 %)	0/44 (0 %)	0.099
Anti C.trachomatis IgG + ve	18 (36 %)	8 (18.2 %)	0.054
Ratio of IgM*	0.37 ± 0.26	0.59 ± 0.24	< 0.05
Ratio of IgG*	1.26 ± 0.99	0.87 ± 0.63	0.03
PCR positive	3/50 (6 %)	0/44 (0 %)	0.09
Antisperm Abs positive	3/50 (6 %)	1/44 (2.3 %)	0.372

*Values are expressed in terms of mean ± S.D. Other values are expressed in terms of frequency and %. S stands for significant (p < 0.05); NS stands for non-significant

ISSN: 1472-6874