Table 3.

Summary of logistic regression analyses with full burnout syndrome used as outcome (N = 1664)a

VariablesUnadjustedModel 1: crude multimorbidity rate as exposureModel 2: standardised multimorbidity rate as exposure
Adjusted for covariatesAdjusted for covariates
OR (95% CI)P-valueOR (95% CI)P-valueOR (95% CI)P-value
Age of GPs, years
  <45 (Ref)
  45–541.59 (1.04 to 2.42)0.0311.64 (1.08 to 2.50)0.0211.66 (1.08 to 2.54)0.020
  ≥550.94 (0.61 to 1.47)0.7960.84 (0.53 to 1.34)0.4600.87 (0.55 to 1.39)0.572
Sex of GPs
  Female (Ref)
  Male1.28 (0.94 to 1.74)0.1201.29 (0.89 to 1.86)0.1741.42 (1.02 to 1.98)0.038
GPs in the practice
  1 (Ref)
  21.31 (0.85 to 2.02)0.2151.13 (0.71 to 1.79)0.6011.21 (0.77 to 1.90)0.412
  30.77 (0.48 to 1.24)0.2840.63 (0.37 to 1.09)0.1000.70 (0.43 to 1.15)0.156
  ≥40.88 (0.57 to 1.35)0.5470.63 (0.38 to 1.05)0.0780.76 (0.48 to 1.22)0.258
DADI, quartilesb
  Lowest (Ref)
  Second0.91 (0.57 to 1.46)0.7050.86 (0.53 to 1.40)0.5460.93 (0.57 to 1.51)0.763
  Third1.36 (0.88 to 2.09)0.1651.22 (0.76 to 1.94)0.4081.37 (0.87 to 2.15)0.178
  Highest1.03 (0.65 to 1.62)0.9080.92 (0.57 to 1.48)0.7271.01 (0.61 to 1.69)0.969
Rate of patients aged65 years, per 100 patients, quartiles
  Lowest (Ref)OmittedcOmittedd
  Second2.48 (1.51 to 4.07)<0.001
  Third1.78 (1.06 to 3.00)0.030
  Highest2.24 (1.36 to 3.70)0.002
Rate of female patients, per 100 patients, quartiles
  Lowest (Ref)Omittedd
  Second1.16 (0.76 to 1.76)0.5001.46 (0.92 to 2.32)0.108
  Third0.88 (0.56 to 1.38)0.5811.14 (0.68 to 1.91)0.625
  Highest0.65 (0.41 to 1.03)0.0690.86 (0.51 to 1.45)0.578
Crude rate of patients with multimorbidity, per 100 patients, quartiles
  Lowest (Ref)
  Second1.23 (0.74 to 2.05)0.4231.19 (0.72 to 1.98)0.496
  Third1.71 (1.08 to 2.71)0.0231.64 (1.02 to 2.64)0.043
  Highest1.79 (1.13 to 2.82)0.0131.60 (0.99 to 2.60)0.056
Sex- and age-standardised rate of patients with multimorbidity per 100 patients, quartiles
  Lowest (Ref)
  Second1.28 (0.80 to 2.04)0.3071.27 (0.78 to 2.06)0.341
  Third1.37 (0.86 to 2.18)0.1791.37 (0.85 to 2.21)0.203
  Highest1.16 (0.72 to 1.88)0.5471.07 (0.63 to 1.80)0.808
  • a Due to missing values on covariates, the number of included GPs are reduced from 1676 to 1664 in the full model.

  • b Data missing for 12 GPs.

  • c Omitted owing to multicollinearity with multimorbidity.

  • d Omitted as rate of patients with multimorbidity is sex- and age-standardised. CI = confidence interval. DADI = Danish Deprivation Index. OR = odds ratio.