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Table 2 Unadjusted and adjusted odds ratios for Indigenous and non-Indigenous groups

From: Is sleep duration associated with overweight/obesity in Indigenous Australian adults?

  Indigenous non-Indigenous
N = 646 N = 5204
OR 95% CI OR 95% CI
Model 1 **p = 0.075 **p < 0.001
Sleep duration (hrs)
  < 6 1.55 (0.58–4.14) 1.67* (1.25–2.25)
  < 7 1.77 (0.79–3.94) 1.22 (0.99–1.50)
  < 8 Ref   Ref  
  < 9 0.88 (0.51–1.53) 0.9 (0.77–1.04)
 9+ 0.74 (0.44–1.22) 0.81* (0.69–0.95)
Model 2 **p < 0.001 **p < 0.001
Sleep duration (hrs)
  < 6 1.51 (0.53–4.30) 1.52* (1.12–2.06)
  < 7 1.66 (0.67–4.07) 1.15 (0.93–1.43)
  < 8 ref   Ref  
  < 9 0.71 (0.38–1.31) 0.92 (0.78–1.07)
 9+ 0.77 (0.43–1.37) 0.88 (0.74–1.03)
Age 1.04* (1.03–1.06) 1.03* (1.02–1.03)
Female 0.64 (0.41–1.01) 0.56* (0.49–0.63)
Employment Status
 Employed Ref   Ref  
 Unemployed 0.81 (0.38–1.73) 0.96 (0.64–1.42)
 Not in Labour force 0.99 (0.58–1.71) 0.8* (0.67–0.95)
Socioeconomic status of locality
 Quintile 1 (lowest) Ref   Ref  
 Quintile 2 0.89 (0.55–1.44) 0.92 (0.76–1.11)
 Quintile 3 1.84 (0.91–3.71) 0.71* (0.59–0.87)
 Quintile 4 0.56 (0.29–1.10) 0.66* (0.54–0.81)
 Quintile 5 (highest 0.86 (0.24–3.12) 0.6* (0.49–0.74)
Household type
 Person living alone Ref   Ref  
 Couple only 4.64* (1.44–14.98) 1.47 (0.89–2.42)
 Couple family with children 8.16* (1.59–41.86) 1.62 (0.81–3.22)
 One parent family with children 3.48* (1.16–10.47) 1.27 (0.84–1.93)
 Unrelated persons aged 15+ only 0.96 (0.15–6.27) 1.14 (0.60–2.15)
 All other households 5.46* (1.14–26.17) 1.65 (0.81–3.36)
Equivalised income of household
 Quintile 1 (lowest) Ref   Ref  
 Quintile 2 1.48 (0.85–2.56) 1.2 (0.99–1.46)
 Quintile 3 1.3 (0.62–2.71) 1.1 (0.88–1.36)
 Quintile 4 1.05 (0.48–2.29) 1.31* (1.05–1.64)
 Quintile 5 (highest 1.75 (0.56–5.15) 1.34* (1.07–1.69)
Number of adults in household
 One Ref   Ref  
 Two 0.49 (0.19–1.24) 0.71 (0.44–1.14)
 Three 0.5 (0.15–1.62) 0.65 (0.35–1.17)
 Four or more 1.05 (0.21–5.16) 0.59 (0.31–1.16)
Number of children 0–17 yrs. in household
 None Ref   Ref  
 One 0.59 (0.24–1.47) 1 (0.73–1.39)
 Two 0.48 (0.18–1.27) 0.96 (0.68–1.35)
 Three 0.69 (0.24–2.00) 1.28 (0.84–1.94)
 Four or more 0.46 (0.15–1.40) 0.92 (0.54–1.58)
Fruit and vegetable intake
 Met recommended dietary guidelines Ref   Ref  
 Did not meet recommended dietary guidelines 2.00 (0.85–4.76) 1.05 (0.81–1.36)
Physical activity
 Met recommended guidelines Ref   Ref  
 Did not meet recommended guidelines 1.37 (0.92–2.05) 1.2* (1.06–1.35)
Smoking Status
 Current daily Ref   Ref  
 Current weekly or but not daily 1.96 (0.54–7.20) 0.9 (0.57–1.41)
 Ex-smoker 3.16* (1.84–5.43) 1.44* (1.20–1.73)
 Never smoked 1.75* (1.07–2.86) 1.08 (0.91–1.28)
  1. * indicates significant result **indicates the overall p value for the model