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Table 5 Multivariate logistic regression for hairdressers of age > 45 year-old

From: Varicose veins in hairdressers and associated risk factors: a cross-sectional study

  N Odds ratio 95% confidence interval
Monthly standing work hours    
25-120 11 1.0  
121-168 13 9.7 (0.7-132.5)
169-208 12 7.4 (0.6-89.9)
209-260 10 6.4 (0.5-86.2)
261-360 9 31.8 (1.8-566.5)*
Number of years working as a hairdresser    
0-30 20 1.0  
31-42 18 10.9 (1.6-73.8)*
43-57 17 12.0 (1.6-88.5)*
Doing housework in standing position    
No 8 1.0  
Yes 47 0.9 (0.1-7.6)
Family history of varicose veins    
No 42 1.0  
Yes 13 1.6 (0.4-7.1)
  1. *p < 0.05.