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Table 3 Odd ratios for smoking among call center female workers according to work-related characteristics

From: Effects of work-related factors on self-reported smoking among female workers in call centers: a cross-sectional study

Variables Unadjusted OR 95% CI aAdjusted OR 95% CI
Emotional labor
 KELS-1, risk 1.37 0.59–3.20 0.87 0.34–2.23
 KELS-2, risk 1.75 0.95–3.21 1.06 0.49–2.23
 KELS-3, risk 2.12 1.16–3.87 1.77 0.82–3.80
 KELS-4, risk 1.81 0.98–3.35 1.28 0.61–2.65
 KELS-5, risk 2.03 0.77–5.32 1.19 0.40–3.55
Workplace violence
 KWVS-1, risk 1.45 0.73–2.88 1.04 0.47–2.31
 KWVS-2, risk 2.47 1.24–4.95 2.21 0.94–5.21
 KWVS-3, risk 1.14 0.45–2.86 0.53 0.17–1.60
 KWVS-4, risk 1.42 0.71–2.82 0.98 0.45–2.13
Work conditions
 Employment type, Informal 1.09 0.59–2.02 0.85 0.42–1.69
Working hours,
  < 40 (hours/week) 1   1  
 40–49 (hours/week) 4.15 1.44–11.92 3.50 1.04–11.80
  ≥ 50 (hours/week) 8.90 2.24–35.32 8.68 1.89–39.78
 Annual salary, ≥21.4 million (KRW) 3.49 1.05–11.59 1.63 0.41–6.49
 Employment period, ≥5 (years) 1.04 0.57–1.88 0.74 0.39–1.42
Demographic characteristics
 Age, ≥40(years) 1.5 0.41–5.44 2.48 0.56–10.96
  1. aAdjusted by each items of emotional labor and working violence, working condition such as employment type, annual salary, employment period, and age