Associations between personal and environmental characteristics and severity of fall injuries, 1991 and 1995
| Severity of injury | ||||
|---|---|---|---|---|
| Variable | No (%) of cases* (n=185) | Minor (%) (n=74) | Severe (%) (n=111) | Odds ratio† (95% CI) |
| *Totals may vary owing to missing data. | ||||
| †The adjusted odds ratios and 95% confidence interval (CI) were estimated using logistic regression with severity of injury as the dependent variable and controlling for surface, height, age, sex, mother tongue, number of medical visits for an injury per year and year of data collection. | ||||
| ‡Type of surface as reported by parents. | ||||
| §g-max was only collected in 1995 (n=110).The odds ratio was estimated using only 1995 data and the g-max was not a confounder for any other variables in the model. | ||||
| Age (years) | ||||
| 1–4 | 59 (31.9) | 49.2 | 50.8 | 1.00 |
| 5–9 | 83 (44.9) | 33.7 | 66.3 | 1.92 (0.91 to 4.06) |
| 10–14 | 43 (23.2) | 39.5 | 60.5 | 1.85 (0.77 to 4.46) |
| Sex | ||||
| Male | 111 (59.6) | 35.1 | 64.9 | 1.00 |
| Female | 74 (40.4) | 47.3 | 52.7 | 0.59 (0.30 to 1.14) |
| Supervision | ||||
| Yes | 126 (68.1) | 41.3 | 58.7 | 1.00 |
| No | 59 (31.9) | 37.3 | 62.7 | 0.91 (0.42 to 1.98) |
| Playground use | ||||
| Rarely | 23 (12.4) | 30.4 | 69.6 | 1.00 |
| Frequently | 162 (87.6) | 41.4 | 58.6 | 0.51 (0.18 to 1.45) |
| Type of equipment | ||||
| Swing | 31 (16.8) | 38.7 | 61.3 | 1.00 |
| Climber | 40 (21.6) | 30.0 | 69.8 | 1.04 (0.32 to 3.32) |
| Module | 74 (40.0) | 43.2 | 56.8 | 0.69 (0.22 to 2.13) |
| Slide | 23 (12.4) | 52.2 | 47.8 | 0.58 (0.15 to 2.24) |
| Other | 17 (9.2) | 35.3 | 64.7 | 1.46 (0.36 to 5.96) |
| Type of surface‡ | ||||
| Recommended | 130 (70.3) | 43.1 | 56.9 | 1.00 |
| Not-recommended | 55 (29.7) | 32.7 | 67.3 | 2.26 (1.05 to 4.87) |
| Equipment height (m) | ||||
| <1.5 | 24 (13.0) | 45.8 | 54.2 | 1.00 |
| 1.5–2.0 | 57 (30.8) | 43.9 | 56.1 | 0.98 (0.35 to 2.79) |
| >2.0 | 104 (56.2) | 36.5 | 63.5 | 1.48 (0.56 to 3.91) |
| g-max (g)§ | ||||
| <150 | 28 (25.0) | 28.6 | 71.4 | 1.00 |
| 150–199 | 44 (40.0) | 29.5 | 70.5 | 1.10 (0.31 to 3.92) |
| >200 | 38 (35.0) | 36.8 | 63.2 | 0.57 (0.15 to 2.17) |