Association between socioeconomic status and childhood injury: by severity of injury
| Severity | Low income category* | Injuries | Rate/1000 (95% CI) | Adjusted rate ratio¶ (95% CI) | Linear trend test (p value) |
|---|---|---|---|---|---|
| *Low income categories based on % individuals within enumeration area living in households with incomes below poverty lines. Percentages for categories I, II, III, IV, and V were 0–9.9, 10–19.9, 20–29.9, 30–39.9, and 40%+ respectively. | |||||
| †Treated with advice only or treated and follow up not required. | |||||
| ‡Treated and follow up required or required a short stay in emergency department. | |||||
| §Admitted to hospital or transferred to another hospital. | |||||
| ¶Adjusted rate ratios were adjusted for age group, sex, and selected socioeconomic status covariates listed in table 1. | |||||
| CI = confidence interval. | |||||
| Minor† | I (rich) | 1789 | 92.7 (88.4 to 97.0) | 1.00 | |
| II | 648 | 100.9 (93.2 to 108.7) | 1.06 (0.96 to 1.16) | ||
| III | 417 | 120.0 (108.5 to 131.5) | 1.12 (1.00 to 1.26) | ||
| IV | 434 | 125.2 (113.5 to 137.0) | 1.18 (1.04 to 1.33) | ||
| V (poor) | 448 | 164.4 (149.2 to 179.6) | 1.50 (1.32 to 1.71) | <0.001 | |
| Moderate‡ | I | 1011 | 52.4 (49.2 to 55.6) | 1.00 | |
| II | 355 | 55.3 (49.5 to 61.0) | 1.05 (0.92 to 1.20) | ||
| III | 201 | 57.8 (49.8 to 65.8) | 1.20 (1.00 to 1.42) | ||
| IV | 229 | 66.1 (57.5 to 74.6) | 1.51 (1.25 to 1.83) | ||
| V | 208 | 76.3 (66.0 to 86.7) | 1.73 (1.40 to 2.13) | <0.001 | |
| Extreme§ | I | 53 | 2.8 (2.0 to 3.5) | 1.00 | |
| II | 22 | 3.4 (2.0 to 4.9) | 1.09 (0.66 to 1.81) | ||
| III | 4 | 1.2 (0.0 to 2.4) | 0.37 (0.13 to 1.02) | ||
| IV | 15 | 4.3 (2.1 to 6.5) | 1.45 (0.77 to 2.71) | ||
| V | 13 | 4.8 (2.2 to 7.4) | 1.53 (0.76 to 3.06) | 0.35 | |