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Table 4 Multivariate analysis of adult inpatient frequent use, stratified by Aboriginal status, NT public hospitals, 2005–2013

From: Frequent use of hospital inpatient services during a nine year period: a retrospective cohort study

  Aboriginal Non-Aboriginal
odds ratio 95% CI. odds ratio 95% CI.
Any frequent use year
 Female (c/w male) 1.39 1.30, 1.49 0.84 0.79, 0.90
 Age groups (c/w 15–29 years)a
  30–44 years 1.75 1.63, 1.89 0.92 0.85, 0.99
  45–60 years 3.01 2.73, 3.31 2.24 2.05, 2.44
  60+ years 3.98 3.55, 4.47 5.15 4.74, 5.60
 Rural/remote (c/w urban)b 0.91 0.85, 0.96 0.85 0.80, 0.91
 Alcohol-related (AR) condition (c/w 0)
  1 AR episode 1.75 1.60, 1.91 1.78 1.56, 2.02
  2+ AR episode 8.90 8.20, 9.66 11.47 9.92, 13.26
 Mental health flag 2.80 2.56, 3.07 3.50 3.18, 3.85
 Pregnancy related flag 2.42 2.22, 2.64 4.02 3.69, 4.38
Increased frequent use duration among frequent usersc
 Female (c/w male) 1.32 1.17 1.49 0.86 0.75, 0.99
 Age groups (c/w 15–29 years)a
  30–44 years 1.46 1.27, 1.68 0.87 0.70, 1.08
  45–60 years 1.60 1.34, 1.90 1.33 1.06, 1.67
  60+ years 1.36 1.09, 1.70 1.82 1.46, 2.27
 Rural/remote (c/w urban)b 0.94 0.84, 1.05 0.82 0.69, 0.96
 Alcohol-related (AR) condition (c/w 0)
  1 AR episode 1.32 1.12, 1.55 1.11 0.86, 1.44
  2+ AR episode 2.88 2.55, 3.26 2.21 1.80, 2.72
 Mental health flag 2.26 1.98, 2.57 1.94 1.63, 2.31
 Pregnancy related flag 0.83 0.71, 0.98 0.70 0.55, 0.89
  1. aBased on age at first episode
  2. bBased on residence at first episode
  3. cTwo or more compared with one frequent use year