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Table 4 Analyses of temporal clustering of neuroblastic tumours at ages 18 months to 19 years

From: Temporal clustering of neuroblastic tumours in children and young adults from Ontario, Canada

Type of analysis 1 (SE)
One-sided p value
Within months Within quarters Within years Within full period
Between fortnights −0.11 (0.17) p = 0.738 − 0.14 (0.07) p = 0.979 − 0.08 (0.95) p = 0.933 −0.06 (0.05) p = 0.867
Between months   −0.20 (0.11) p = 0.968 −0.11 (0.08) p = 0.926 − 0.07 (0.07) p = 0.827
Between quarters    0.02 (0.15) p = 0.443 0.18 (0.13) p = 0.064
Between years     0.64 (0.27) p = 0.018
  1. 1 ^β is the one-step estimate of β, the extra-Poisson variation, calculated in the same way as originally described by Muirhead [16]