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Table 2 Multiple logistic analysis of factors affecting secondhand smoke exposure in workplace

From: Second hand smoke exposure in workplace by job status and occupations

Dependent variables Adjusted OR (Odds Ratio) 95% CI (Confidence Interval)
Sex (reference: Female)
 Male 4.107** 3.461 ~  4.874
Age (reference: ≤39)
 40–49 1.551** 1.348 ~  1.785
 50–59 1.529** 1.319 ~  1.772
  ≥ 60 1.116 0.916 ~  1.360
Number of workers in workplace (reference: ≥ 300)
  ≤ 49 2.114** 1.721 ~  2.595
 50–300 1.545** 1.232 ~  1.937
Status (reference: Permanent workers)
 Temporary workers 1.130 0.957 ~  1.334
 Daily workers 1.318** 1.102 ~  1.575
Occasionally need to wear personal protective equipment (reference No)
 Yes 1.132 0.942 ~  1.359
Wage_Provider (reference: Work place (last week’s work place))
 A dispatcher 1.140 0.814 ~  1.596
 Service provider 1.736** 1.401 ~  2.149
Type of Workplace (reference: Employer’s place of business
 Customer’s place of business 1.220* 1.014 ~  1.466
 In the case of transportation such as cars .696 0.466 ~  1.040
 Outdoor (construction site, field / etc.) 1.668** 1.423 ~  1.956
 My house 2.200 0.186 ~  25.995
  1. Adjusted by Sex, Age, Number of workers in workplace, Work status, need of personal protective equipment, Wage provider and Types of workplace
  2. * p < 0.05 ** p < 0.01