Table 2.
Unadjusted and adjusted prevalence ratios for overweight and obesity associated with selected demographic and behavioural factors in ACT Year 6 children, 2006–2018
| Characteristics | Prevalence Ratios (95% CI) | |
|---|---|---|
| Unadjusted | Adjusteda | |
| Demographic factors | ||
| Sex | ||
| Boys | Ref. | Ref. |
| Girls | 0.93 (0.85, 1.02) | 0.90 (0.82, 0.98) |
| Indigenous status | ||
| Non-Indigenous | Ref. | Ref. |
| Indigenous | 1.51 (1.25, 1.83) | 1.44 (1.19, 1.76) |
| ICSEA quintile (school-level) | ||
| Highest (least deprived) | Ref. | Ref. |
| Fourth | 1.20 (1.02, 1.41) | 1.19 (0.97, 1.46) |
| Third | 1.29 (1.09, 1.52) | 1.27 (1.03, 1.55) |
| Second | 1.50 (1.29, 1.75) | 1.36 (1.12, 1.65) |
| Lowest (most deprived) | 1.66 (1.43, 1.94) | 1.52 (1.25, 1.84) |
| Behavioural factors | ||
| Physical activity (60 m/d) | ||
| 6–7 days per week | Ref. | Ref. |
| 3–5 days per week | 1.37 (1.24, 1.53) | 1.35 (1.21, 1.51) |
| 0–2 days per week | 1.64 (1.44, 1.86) | 1.56 (1.37, 1.78) |
| TV and computer time weekdays | ||
| 0–1 h per day | Ref. | Ref. |
| 2–4 h per day | 1.38 (1.25, 1.52) | 1.29 (1.17, 1.43) |
| 5 h or more | 1.63 (1.40, 1.89) | 1.44 (1.23, 1.68) |
| Sugar-sweetened drink consumptionb | ||
| Never | Ref. | – |
| Less than once a week | 1.15 (1.00, 1.33) | – |
| 1–3 times a week | 1.30 (1.11, 1.52) | – |
| 4–6 times a week | 1.32 (1.08, 1.61) | – |
| Everyday | 1.58 (1.25, 2.00) | – |
| Fast food consumptionb | ||
| Never | Ref. | – |
| Less than once a week | 1.10 (0.96, 1.26) | – |
| 1–3 times a week | 1.23 (1.04, 1.44) | – |
| 4 times a week or more | 1.31 (1.01, 1.71) | – |
aAdjusted for sex, Indigenous status, ICSEA (Index of Community Socio-Educational Advantage), physical activity and screen time
bStepwise regression method was used for selecting variables for inclusion in the multiple regression model. SSD and fast food consumption were not included in the final model because, after adjustment for other factors, the associations were no longer significant