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Table 2 Adjusted Differences in Cross-sectional Means and Group Specific Longitudinal Changes (β coefficients) of SF-36 Physical (PCS) and Mental (MCS) Health Functioning Scores from 2007 to 2012 by number of sickness absence days in 2004–2007 (n = 3079)

From: Physical and mental health functioning after all-cause and diagnosis-specific sickness absence: a register-linkage follow-up study among ageing employees

Absence days in 2004–2007: 2007 2012 Change from 2007 to 2012
β (95% CI) β (95% CI) β (95% CI)
PCS
Model 1
All      −0.9 (−1.2 to0.7)
 0–13 days* ref.   ref.   −1.2 (−1.5 to−0.9)
 14–30 days** −2.7 (−3.5 to−2.0) −2.5 (−3.3 to−1.6) −0.9 (−1.7 to−0.1)
 31–60 days** −3.8 (−4.8 to−2.8) −3.4 (−4.5 to−2.3) −0.8 (−1.9 to 0.3)
 >60 days ** −7.1 (−8.0 to−6.2) −5.1 (−6.1 to−4.1) 0.8 (−0.3 to 2.0)
Model 2
All     0.9 (−1.2 to0.7)
 0–13 days ref.   ref.   −1.2 (−1.5 to−0.9)
 14–30 days −2.5 (−3.2 to−1.7) −2.1 (−3.0 to−1.3) −0.9 (−1.6 to−0.1)
 31–60 days −3.5 (−4.5 to −2.5) −3.1 (−4.1 to−2.0) −0.8 (−1.9 to 0.3)
 >60 days −6.7 (−7.6 to−5.8) −4.6 (−5.6 to−3.6) 0.8 (−0.3 to 1.9)
MCS
Model 1
All      1.0 (0.6 to 1.3)
 0–13 days ref.   ref.   0.7 (0.3 to 1.1)
 14–30 days −0.5 (−1.5 to 0.5) 0.1 (−0.8 to 1.0) 1.4 (0.5 to 2.3)
 31–60 days −1.2 (−2.5 to 0.1) −0.6 (−1.8 to 0.5) 1.3 (−0.1 to 2.7)
 >60 days −3.0 (−4.1 to −1.8) −1.6 (−2.7 to−0.5) 2.1 (0.7 to 3.6)
Model 2
All      1.0 (0.6 to 1.3)
 0–13 days ref.   ref.   0.7 (0.3 to 1.1)
 14–30 days −0.7 (−1.7 to 0.3) −0.0 (−0.9 to 0.9) 1.4 (0.5 to 2.3)
 31–60 days −1.4 (−2.6 to −0.1) −0.8 (−2.0 to 0.4) 1.3 (−0.1 to 2.7)
 >60 days −3.2 (−4.3 to −2.0) −1.8 (−2.9 to−0.7) 2.1 (0.7 to 3.5)
  1. * 0 absence days or non-reimbursed sickness absence only (absence periods lasting less than 14 consecutive calendar days at a time)
  2. **number of reimbursed sickness absence days from the absence periods lasting ≥ 14 consecutive calendar days
  3. Model 1 adjusted for age and gender
  4. Model 2 adjusted for Model 1 + occupational class in 2007 and old-age retirement between 2007 and 2012