From: Temporal clustering of neuroblastic tumours in children and young adults from Northern England
 | No. of cases (%) | ||
---|---|---|---|
Overall (0–24 years) | 227 (100 %) | ||
Males | 118 (52Â %) | ||
Females | 109 (48Â %) | ||
Age at diagnosis: | Â | ||
<18Â months | 76 (33.5Â %) | ||
18 months – 4 years | 99 (43.6 %) | ||
5–24 years | 52 (22.9 %) | ||
Time period: | Â | ||
1968–1978 | 49 (21.6 %) | ||
1979–1989 | 60 (26.4 %) | ||
1990–2000 | 61 (26.9 %) | ||
2001–2011 | 57 (25.1 %) | ||
 | Mean | Median | Inter-quartile range |
Age at diagnosis (years) | 3.74 | 2.23 | 0.96–4.51 |
Annual number of cases | 5.16 | 5 | 4–7 |