Risk Prediction of Ureaplasma urealyticum Affecting Sperm Quality Based on Mathematical Model and Cross-Sectional Study
Table 3
Baseline characteristics.
Indicator
Observation group
Control group
Sample size ()
104
236
—
Age (y), median ()
33.34 (29.00~38.00)
32.99 (27.00~39.00)
0.669Δ
Height (cm), median (Q25 ~ Q75)
166.31 (163.01~169.00)
165.86 (162.00~169.00)
0.367Δ
Weight (kg), median ()
66.92 (60.50~70.80)
66.63 (60.40~70.80)
0.689Δ
BMI (kg m-2),
0.880
AT (d), median ()
4.01 (3.00~5.00)
4.17 (3.00~5.00)
0.358Δ
Marriage status, (%)
First marriage
64 (61.5)
147 (62.3)
0.494☆
Remarried
40 (38.5)
89 (37.7)
Fertility status, (%)
Primary infertility
67 (64.4)
151 (64.0)
0.980☆
Secondary infertility
22 (21.2)
49 (20.8)
Prebirth physical examination
15 (14.4)
36 (15.2)
Note: BMI: body mass index; AT: abstinence time. values were derived from Student’s -test for parametric comparisons and the Mann–Whitney test and Chi-square test for nonparametric comparisons. : 25th percentile; : 75th percentile; s.d.: standard deviation. Student’s -test. ΔMann–Whitney test. ☆Chi-square test.
