Demographics of children referred with skull fracture and/or intracranial injury in comparison to the childhood population of Auckland, and the rate of abusive head trauma (AHT).
| Census population under 15 years* (n=288,573) | Total referred (n=345) | Rate of AHT in all referred children (n=206) | OR (95%CI)** | |
|---|---|---|---|---|
| N (%) | N (%) | N (%) | ||
| Under 2 years | 38,481 (13) | 293 (85) | 180 (61) | 1.6 (0.8–3.0) |
| Over 2 years | 250,092 (87) | 52 (15) | 26 (50) | |
| Male | 147,840 (51) | 222 (64) | 127 (57) | 0.7 (0.5–1.2) |
| Female | 140,733 (49) | 123 (36) | 79 (64) | |
| Higher deprivation† | 154,493 (54) | 273 (79) | 165 (60) | 1.2 (0.7–2.0) |
| Lower deprivation† | 134,080 (46) | 72 (21) | 41 (57) | |
| Maori | 50,718 (18) | 161 (47) | 115 (71) | 1.8 (1.0–3.4) |
| Pacific | 56,136 (19) | 91 (26) | 39 (43) | 0.6 (0.3–1.1) |
| European/other | 131,849 (46) | 73 (21) | 42 (58) | Ref. |
| Asian | 49,870 (17) | 20 (6) | 10 (50) | 0.7 (0.2–2.3) |
*2006 New Zealand Census–Auckland region11
**OR with 95% CI (95%CI), for the odds of AHT.
†Higher=New Zealand Deprivation Index16 deciles 6–10; lower=deciles 1–5.