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Table 1 The basic characteristics of the participants based on M. hominis status

From: The associations between low abundance of Mycoplasma hominis and female fecundability: a pregnancy-planning cohort study

  M.hominis negative
N = 69
M.hominis positive
N = 20
t/χ2 P
Age, mean ± SD 28.65 ± 3.30 28.45 ± 2.97 0.26 0.800
Age difference 1.02 (− 0.40 ~ 3.41) 1.45 (0.09 ~ 3.20) 0.08a 0.963
Pregnancy history, n (%)
 No 62 (91.2) 17 (85.0) 0.15 0.703
 Yes 6 (8.8) 3 (15.0)   
Regular menstruation, n (%) 0.49 0.485
 No 13 (19.4) 6 (30.0)   
 Yes 54 (80.6) 14 (70.0)   
Vaginal cleanness grading, n (%) 0.49 0.484
 I-II 51 (73.9) 13 (65.0)   
 III-IV 18 (26.1) 7 (35.0)   
  1. a Kruskal–Wallis test