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Table 3 Results of the adjusted regression analysis of productivity loss on SCQa score

From: The impact of comorbidities on productivity loss in asthma patients

   Absenteeism Presenteeism Total Productivity Loss
Female v. male Adjusted OR for reporting productivity loss 1.72 1.08 0.99
(0.53–2.57) (0.61–2.35) (0.56–1.76)
(P = 0.7) (P = 0.77) (P = 0.99)
Adjusted ratio of productivity loss among those who reported productivity loss 0.42 0.88 0.79
(0.15–1.18) (0.52–2.18) (0.46–1.37)
(P = 0.1) (P = 0.63) (P = 0.41)
Age (per 1 year increase) Adjusted OR for reporting productivity loss 0.98 0.98 0.98
(0.95–1.01) (0.96–1.04) (0.96–1.01)
(P = 0.31) P = (0.13) (P = 0.23)
Adjusted ratio of productivity loss among those who reported productivity loss 0.98 0.99 0.98
(0.94–1.03) (0.96–1.04) (0.96–1.01)
(P = 0.5) (P = 0.49) (P = 0.18)
High v. urban education Adjusted OR for reporting productivity loss 1.16 0.68 0.52
(0.41–3.27) (0.34–2.84) (0.25–1.1)
(P = 0.73) (P = 0.27) (P = 0.09)
Adjusted ratio of productivity loss among those who reported productivity loss 0.92 1.50 1.44
(0.29–2.96) (0.84–2.40) (0.76–2.72)
(P = 0.9) (P = 0.17) (P = 0.26)
Rural residence Adjusted OR for reporting productivity loss 0.47 0.38 0.41
(0.13–1.75) (0.11–6.17) (0.13–1.35)
(P = 0.26) (P = 0.11) (P = 0.14)
Adjusted ratio of productivity loss among those who reported productivity loss 0.99 0.42 0.44
(0.05–20.88) (0.21–2.88) (0.16–1.15)
(P = 0.99) (P = 0.1) (P = 0.1)
Foreign Born v. Canadian-born Adjusted OR for reporting productivity loss 0.95 1.00 1.21
(0.41–2.19)) (0.56–2.42) (0.67–2.17)
(P = 0.92) (P = 0.99) (P = 0.53)
Adjusted ratio of productivity loss among those who reported productivity loss 0.41 0.84 0.72
(0.12–1.39) (0.52–2.08) (0.43–1.19)
(P = 0.16) (P = 0.5) (P = 0.2)
PDCb Level (Reference: PDC < 50 %)
 50–80 % Adjusted OR for reporting productivity loss 2.75 1.27 1.34
(0.98–7.73) (0.54–3.66) (0.58–3.10)
(P = 0.07) (P = 0.59) (P = 0.49)
Adjusted ratio of productivity loss among those who reported productivity loss 1.49 2.50 2.72
(0.33–6.64) (0.70–6.77) (0.91–8.10)
(P = 0.6) (P = 0.15) (P = 0.07)
 >80 % Adjusted OR for reporting productivity loss 1.11 0.86 0.97
(0.48–2.59) (0.47–2.50) (0.52–1.80)
(P = 0.8) (P = 0.6) (P = 0.93)
Adjusted ratio of productivity loss among those who reported productivity loss 0.95 1.13 1.13
(0.40–2.29) (0.69–2.08) (0.68–1.86)
(P = 0.91) (P = 0.62) (P = 0.64)
Drug Insurance (Reference: full insurance)
 Partial Adjusted OR for reporting productivity loss 1.36 1.03 1.11
(0.41–4.49) (0.45–3.44) (0.47–2.63)
(P = 0.59) (P = 0.94) (P = 0.8)
Adjusted ratio of productivity loss among those who reported productivity loss 0.84 0.60 0.73
(0.20–3.53) (0.24–3.99) (0.30–1.80)
(P = 0.82) (P = 0.17) (P = 0.5)
 None Adjusted OR for reporting productivity loss 0.82 0.91 0.86
(0.20–3.43) (0.36–4.07) (0.33–2.25)
(P = 0.82) (P = 0.86) (P = 0.76)
Adjusted ratio of productivity loss among those who reported productivity loss 1.09 0.66 0.76
(0.16–7.33) (0.24–4.58) (0.28–2.11)
(P = 0.93) (P = 0.42) (P = 0.61)
High v. low income Adjusted OR for reporting productivity loss 0.84 0.87 0.88
(0.37–1.88) (0.48–2.47) (0.47–1.66)
(P = 0.54) (P = 0.66) (P = 0.7)
Adjusted ratio of productivity loss among those who reported productivity loss 1.47 1.27 1.27
(0.55–3.93) (0.74–2.25) (0.69–2.32)
(P = 0.44) (P = 0.38) (P = 0.44)
SCQ (per 1 unit increase) Adjusted OR for reporting productivity loss 1.17 1.14 1.14
(1.04–1.32) (1.03–1.17) (1.02–1.28)
(P = 0.01) (P = 0.01) (P = 0.01)
Adjusted ratio of productivity loss among those who reported productivity loss 1.04 1.05 1.09
(0.90–1.21) (0.98–1.11) (1.01–1.18)
(P = 0.56) (P = 0.14) (P = 0.02)
  1. aSelf-administered comorbidity questionnaire
  2. bproportion of days covered by medication