Table 1 Characteristics of cases of neuroblastic tumours in the study population (based on cases diagnosed during 1985-2016 inclusive)
From: Temporal clustering of neuroblastic tumours in children and young adults from Ontario, Canada
| Number of cases (%) | |||
| Overall (0-19 years) | 876 (100) | ||
| Males | 481 (54.9) | ||
| Females | 395 (45.1) | ||
| Age at diagnosis: | |||
| < 18 months | 393 (44.9) | ||
| 18 months – 4 years | 364 (41.6) | ||
| 5 – 19 years | 119 (13.6) | ||
| Time period: | |||
| 1985-1992 | 193 (22.0) | ||
| 1993-2000 | 203 (22.2) | ||
| 2001-2008 | 227 (25.9) | ||
| 2009-2016 | 253 (28.9) | ||
| Mean | Median | Quartile 1, Quartile 3 | |
| Age at diagnosis (years) | 2.57 | 1.77 | 0.67, 3.66 |
| Annual number of cases | 27.4 | 27 | 21, 32 |