Table 1 Comparisons of Sociodemographic characteristics and Abstinence Duration between Formaldehyde occupational exposure group and reference group.

From: Associations between occupation exposure to Formaldehyde and semen quality, a primary study

Characteristics

Reference group (n = 76)

FA exposure group (n = 114)

P

Age (years)

29.26 ± 3.51

29.84 ± 4.06

0.293

Employment duration (years)

5.37 ± 1.83

6.11 ± 1.45

0.132

BMI (kg/m2)

23.88 ± 1.32

24.09 ± 1.78

0.617

Education level

  

0.174

 Low(<6 years)

19(23.5%)

40(32.2%)

 

 High(6 years)

62(76.5%)

84(67.8%)

 

 Income (RMB/per month)

1814.20 ± 680.59

1733.87 ± 608.86

0.379

Cigarette intake

  

0.348

 Low (no smoking)

13(16.1%)

15(12.1%)

 

 Moderate(<10 Cigarettes/day)

63(77.8%)

105(84.7%)

 

 High (10 Cigarettes/day)

5(6.1%)

4(3.2%)

 

Alcohol consumption

  

0.709

 Low (no drinking)

38(39.3%)

46(36.1%)

 

 Moderate(<1000g/day)

56(57.6%)

73(58.3%)

 

 High (1000g/day)

3(3.1%)

7(5.6%)

 

 Duration of abstinence

3.97 ± 1.51

4.13 ± 1.59

0.930

  1. BMI: Body mass index.