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Table 2 Analyses of temporal clustering of neuroblastic tumours at ages 0-19 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 −0.07 (0.11) P = 0.714 − 0.11 (0.06) P = 0.973 − 0.06 (0.05) P = 0.881 − 0.01 (0.05) P = 0.535
Between months   − 0.13 (0.10) P = 0.910 − 0.07 (0.08) P = 0.812 0.04 (0.07) P = 0.259
Between quarters    0.14 (0.15) P = 0.17 0.41 (0.13) P = 0.002
Between years     1.05 (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]