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Table 5 Proportions of abnormal sperm parameters according to Mn group (%)

From: Effects of manganese on routine semen quality parameters: results from a population-based study in China

Mn group

N

Semen volume

Sperm density

Sperm viability

Progressive motility

Normal morphology

<20%

234

22.3

3.0

54.5

48.9

15.2

20–39%

232

20.3

5.1

64.7

59.5

15.0

40–59%

241

27.3

4.6

59.5

55.8

11.7

60–79%

236

23.4

6.0

65.5

60.9

8.6

≥80%

236

16.9

5.1

65.4

66.2

14.2