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Table 1 Relevant demographic characteristics, occupational data and relevant past medical and family history of the studied workers by Chi Square test:

From: Cardiotoxicity of Freon among refrigeration services workers: comparative cross-sectional study

Relevant characteristics and occupational data

Freon-exposed workers

(N = 23)

Non-exposed workers

(N = 23)

P-value

Age (years)( ± SD)

45.9 + 4.4

43.7 ± 3.2

0.058

Special habits & life style N (%)

   

Excess salt intake

14 (60.9%)

9 (39.1%)

0.14

Cigarette smokers

11 (47.8%)

7 (30.4%)

0.22

Stressful life

14 (60.9%)

17 (73.9%)

0.34

Duration of employment (years) ( ± SD)

20.9 + 3.3

19.3 ± 2.7

0.078

Relevant past medical and family history

   

Past history of nephrotoxic drug abuse N (%)

6 (26.1%)

3 (13.04%)

0.45

Past history of hepatitis C N (%)

2 (8.7%)

4 (17.4%)

0.66

Family history of dyslipidemia and/or hypertension N (%)

19 (82.6%)

13 (56.5%)

0.054

Family history of coronary artery disease N%)

4 (17.4%)

1 (4.3%)

0.34