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Table 4 Logistic regression model for three or more compared with one to two avoidable admissions: for each financial year of the study period (2005/06–2013/14) by Aboriginal status and explanatory factors (n = 19,025)

From: Frequent avoidable admissions amongst Aboriginal and non-Aboriginal people with chronic conditions in New South Wales, Australia: a historical cohort study

 

≥3 avoidable admissions compared to 1 to 2 per financial year

Odds ratios (OR) (95% CI)

Unadjusted OR

Adjusted OR

Adjusted OR & restricted to < 75 years

P-value

Aboriginal status

   

< 0.0001

 Non-Aboriginal

ref.

ref.

ref.

 

 Aboriginal

1.79 (1.58, 2.03)

1.97 (1.71, 2.27)

1.90 (1.60, 2.26)

 

Financial year

   

0.6760a

 2005–06

ref.

ref.

ref.

 

 2006–07

0.93 (0.75, 1.16)

0.94 (0.75, 1.17)

0.91 (0.71, 1.16)

 

 2007–08

0.89 (0.71, 1.10)

0.88 (0.71, 1.10)

0.84 (0.66, 1.07)

 

 2008–09

0.86 (0.69, 1.08)

0.85 (0.68, 1.06)

0.78 (0.61, 0.99)

 

 2009–10

0.96 (0.77, 1.18)

0.93 (0.75, 1.16)

0.88 (0.69, 1.11)

 

 2010–11

0.94 (0.76, 1.17)

0.91 (0.73, 1.13)

0.92 (0.72, 1.17)

 

 2011–12

0.97 (0.79, 1.20)

0.93 (0.76, 1.15)

0.93 (0.74, 1.17)

 

 2012–13

0.90 (0.73, 1.11)

0.86 (0.69, 1.07)

0.85 (0.67, 1.08)

 

 2013–14

0.99 (0.81, 1.23)

0.96 (0.78, 1.18)

0.94 (0.74, 1.18)

 

Sex

 Male

–

ref.

ref.

 

 Female

–

0.96 (0.86, 1.06)

1.01 (0.90, 1.13)

0.864

Age

–

1.01 (1.01, 1.02)

1.02 (1.01, 1.02)

< 0.0001

Marital status

 Married

–

ref.

ref.

 

 Single

–

1.27 (1.11, 1.45)

1.37 (1.19, 1.59)

< 0.0001

 Widowed

–

1.12 (0.96, 1.30)

1.31 (1.09, 1.58)

0.004

 Divorced/separated

–

1.33 (1.14, 1.54)

1.34 (1.14, 1.57)

< 0.0001

 Not known

–

0.92 (0.59, 1.45)

0.90 (0.54, 1.50)

0.694

Index of relative socio-economic disadvantage (IRSD)

 1st quintile – most disadvantaged

–

ref.

ref.

 

 2nd quintile

–

0.86 (0.75, 0.99)

0.89 (0.76, 1.04)

0.146

 3rd quintile

–

1.01 (0.86, 1.18)

1.00 (0.84, 1.20)

0.970

 4th quintile

–

0.91 (0.76, 1.10)

1.00 (0.82, 1.23)

0.979

 5th quintile – least disadvantaged

–

0.80 (0.63, 1.03)

0.69 (0.50, 0.95)

< 0.05

Accessibility/remoteness index of Australia (ARIA)

 Highly Accessible

–

ref.

ref.

 

 Accessible

–

0.89 (0.78, 1.01)

0.85 (0.73, 0.98)

< 0.05

 Moderately Accessible

–

0.98 (0.82, 1.16)

0.89 (0.74, 1.08)

0.245

 Remote / Very Remote

–

1.11 (0.90, 1.38)

1.07 (0.85, 1.35)

0.549

  1. a Post estimation Wald test for financial year term