Table 2

Associations (fixed effects) between individual and municipality contextual characteristics and UMAs

Model 1Model 2Model 3Model 4Model 5Model 6Model 7
OR(95% CI)OR(95% CI)OR(95% CI)OR(95% CI)OR(95% CI)OR(95% CI)OR(95% CI)
Individual-level predictors
Age (years)
 65–691Ref1Ref1Ref1Ref1Ref1Ref1Ref
 70–741.38(1.35 to 1.42)1.38(1.35 to 1.42)1.38(1.35 to 1.42)1.38(1.35 to 1.42)1.38(1.35 to 1.42)1.38(1.35 to 1.42)1.39(1.35 to 1.44)
 75–792.02(1.97 to 2.06)2.02(1.97 to 2.06)2.02(1.97 to 2.06)2.02(1.97 to 2.06)2.02(1.97 to 2.06)2.02(1.97 to 2.06)2.06(2.00 to 2.12)
 80–843.01(2.95 to 3.08)3.01(2.94 to 3.08)3.01(2.94 to 3.08)3.01(2.94 to 3.08)3.01(2.94 to 3.08)3.01(2.94 to 3.08)3.15(3.06 to 3.25)
 85+4.89(4.79 to 5.00)4.89(4.79 to 5.00)4.89(4.79 to 5.00)4.89(4.79 to 5.00)4.89(4.79 to 5.00)4.89(4.79 to 5.00)5.35(5.19 to 5.51)
Sex
 Female1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref
 Male1.29(1.27 to 1.30)1.29(1.27 to 1.30)1.29(1.27 to 1.30)1.29(1.27 to 1.30)1.29(1.27 to 1.30)1.29(1.27 to 1.30)1.29(1.27 to 1.30)
Municipality-level predictors
Travel time to hospital (min)
 0–19 1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref
 20–60 0.92(0.90 to 0.95)0.94(0.91 to 0.98)0.94(0.91 to 0.98)0.95(0.91 to 0.99)0.95(0.91 to 0.99)0.95(0.91 to 0.99)
 60+ 0.87(0.84 to 0.90)0.89(0.85 to 0.93)0.89(0.85 to 0.93)0.90(0.86 to 0.94)0.90(0.86 to 0.95)0.90(0.86 to 0.95)
Hospital in municipality
 Yes 1.00Ref1.00Ref1.00Ref1.00Ref1.00Ref
 No 1.04(0.99 to 1.08)1.04(0.99 to 1.08)1.04(1.00 to 1.08)1.04(0.99 to 1.08)1.04(0.99 to 1.08)
GP
 Q1 (lowest) 1.00Ref1.00Ref1.00Ref
 Q2 1.02(0.98 to 1.06)1.01(0.97 to 1.05)1.01(0.97 to 1.05)
 Q3 1.00(0.96 to 1.04)1.00(0.96 to 1.04)1.00(0.96 to 1.04)
 Q4 (highest)1.01(0.97 to 1.05)1.01(0.97 to 1.05)1.01(0.97 to 1.05)
LTC
 Q1 (lowest) 1.00Ref1.00Ref1.00Ref
 Q2 0.96(0.93 to 1.00)0.96(0.93 to 1.00)1.02(0.97 to 1.08)
 Q3 0.98(0.93 to 1.02)0.98(0.93 to 1.02)1.07(1.00 to 1.14)
 Q4 (highest)0.97(0.93 to 1.02)0.97(0.93 to 1.02)1.13(1.04 to 1.22)
Interaction
 LTC*age
  Q1*65–69 1.00Ref
  Q2*70–74 0.98(0.93 to 1.04)
  Q3*70–74 0.98(0.91 to 1.05)
  Q4*70–74 0.98(0.89 to 1.07)
  Q2*75–79 0.95(0.90 to 1.01)
  Q3*75–79 0.96(0.90 to 1.04)
  Q4*75–79 0.90(0.83 to 0.99)
  Q2*80–84 0.94(0.89 to 0.99)
  Q3*80–84 0.89(0.83 to 0.96)
  Q4*80–84 0.81(0.75 to 0.89)
  Q2*85+ 0.87(0.82 to 0.91)
  Q3*85+ 0.79(0.74 to 0.85)
  Q4*85+ 0.73(0.67 to 0.79)
  • ORs and 95% CIs. Men and women aged 65 years or older in Norway, 2009.

  • *Estimates for key exposures adjusted for just age and sex (model 1): GP Q1 (OR=1.0, 95% CI (ref)), GP Q2 (OR=1.03, 95% CI (0.99 to 1.08)), GP Q3 (OR=1.02, 95% CI (0.97 to 1.06)), GP Q4 (OR=1.01, 95% CI (0.97 to 1.06)), LTC Q1 (OR=1.0, 95% CI (ref)), LTC Q2 (OR 0.94, 95% CI (0.90 to 0.97)), LTC Q3 (OR=0.93, 95% CI (0.89 to 0.97)) and LTC Q4 (OR=0.91, 95% CI (0.86 to 0.95)).

  • GP, general practitioner; LTC, long-term care; UMAs, unplanned medical admissions.