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Table 6 Analyses of temporal clustering of neuroblastic tumours at ages 0-19 years for females

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 −0.04 (0.193) p = 0.581 −0.04 (0.787) p = 0.672 − 0.01 (0.06) p = 0.538 0.04 (0.05) p = 0.207
Between months   −0.12 (0.12) p = 0.835 −0.02 (0.08) p = 0.579 0.07 (0.07) p = 0.176
Between quarters    0.11 (0.15) p = 0.230 0.31 (0.13) p = 0.012
Between years     0.79 (0.25) p = 0.005
  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]