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Table 5 Scoring of patient’s multifactorial lifestyle by impact points in healthy and unhealthy lifestyle groups

From: The combination matters - distinct impact of lifestyle factors on sperm quality: a study on semen analysis of 1683 patients according to MSOME criteria

 

Total number

Healthy lifestyle (< 3 Points)a

Unhealthy lifestyle (> 2 Points)b

p-value

Number of Patients

1654

1484

 

170

  

ml/sample (mean ± sd)

 

2.5

± 1.3

2.8

± 1.6

<0.001

Mio/ml (mean ± sd)

 

23.9

± 32.7

22.4

± 23

n.s.

Mio/sample (mean ± sd)

 

58.5

± 110.2

58.6

± 68.7

n.s.

Grade a Sperm (%)

 

5.3

± 8.2

4.5

± 7.7

<0.05

Grade b Sperm (%)

 

32.5

± 17.9

31.4

± 17.5

n.s.

Grade c Sperm (%)

 

18.3

± 14.4

17.7

± 13.7

n.s.

Grade d Sperm (%)

 

43.9

± 20.4

46.2

± 20.9

n.s.

Class I (%)

 

6.5

± 6.6

5.6

± 5.9

<0.01

Class II (%)

 

42.8

± 14.4

43.7

± 14.4

n.s.

Class III (%)

 

50.7

± 18.2

50.7

± 17.5

n.s.

  1. Factors which might negatively affect sperm quality such as BMI (> 25 kg/m2), age (> 50 years), coffee (> 3 cups/day), sexual abstinence (> 2 days) and ejaculation frequency (< 4 times/month) were scored with one point and set in correlation to semen parameters. Cut-off for (un-)healthy lifestyle was set to 2 points. a 216 patients = 0 points, 656 patients = 1 point; 613 patients = 2 points; b 149 patients = 3 points; 20 patients = 4 points, 1 patient = 5 points; n.s.: not significant.