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Table 3 Medical history of men all included

From: Incidence and risk factors of infertility among couples who desire a first and second child in Shanghai, China: a facility-based prospective cohort study

 

All couples

First child

P valuec

Second child

P valuec

Fertility (N = 1808)

Infertilitya (N = 369)

Fertility (N = 1484)

Infertilitya (N = 355)

Fertility (N = 324)

Infertilitya (N = 14)

nb (%)

nb(%)

nb (%)

nb(%)

nb (%)

nb(%)

Genital tract infection history

 Neisseria gonorrhoeae

  No

1682 (99.94)

346 (100.00)

1362 (99.93)

327 (100.00)

1.000

313 (100.00)

14 (100.00)

NA

  Yes

1 (0.06)

0

1 (0.07)

0 (0.00)

0 (0.00)

0 (0.00)

 TP

  No

1683 (100.00)

346 (100.00)

1363 (100.00)

327 (100.00)

NA

313 (100.00)

14 (100.00)

NA

  Yes

0

0

0 (0.00)

0 (0.00)

0 (0.00)

0 (0.00)

 Herpes virus

  No

1681 (99.88)

346 (100.00)

1362 (99.93)

327 (100.00)

1.000

312 (99.68)

14 (100.00)

1.000

  Yes

2 (0.12)

0

1 (0.07)

0 (0.00)

1 (0.32)

0 (0.00)

 Mycoplasma genitalium

  No

1648 (97.92)

328 (94.80)

1331 (97.65)

310 (94.80)

0.009

310 (99.04)

13 (92.86)

0.161

  Yes

35 (2.08)

18 (5.20)

32 (2.35)

17 (5.20)

3 (0.96)

1 (7.14)

 Chlamydia genitalium

  No

1658 (98.51)

267 (96.04)

1340 (98.31)

314 (96.02)

0.017

311 (99.36)

14 (100.00)

1.000

  Yes

25 (1.49)

13 (3.76)

23 (1.69)

13 (3.98)

2 (0.64)

0 (0.00)

 HPV

  No

1682 (99.94)

345 (99.71)

1362 (99.93)

326 (99.69)

0.350

313 (100.00)

14 (100.00)

NA

  Yes

1 (0.06)

1 (0.29)

1 (0.07)

1 (0.31)

0 (0.00)

0 (0.00)

 Prostatitis

  No

1627 (97.66)

321 (94.69)

1312 (97.35)

304 (95.00)

0.050

308 (99.35)

13 (92.86)

0.124

  Yes

39 (2.34)

18 (5.31)

37 (2.74)

16 (5.00)

2 (0.65)

1 (7.14)

  1. TP treponema pallidum antibody, HPV high-risk human papillomavirus
  2. aFaliure to conceive after regular unprotected sexual intercourse for 1 year
  3. bThe sum does not necessarily equal the sample size for all variables because of missing data
  4. cPearson’s χ2 test