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Table 3 Analyses of temporal clustering of neuroblastic tumours at ages < 18 months

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 −0.271 (0.19) p = 0.926 − 0.103 (0.08) p = 0.910 − 0.019 (0.05) p = 0.632 0.006 (0.05) p = 0.537
Between months   −0.05 (0.12) p = 0.656 0.09 (0.08) p = 0.144 0.08 (0.07) p = 0.141
Between quarters    0.37 (0.15) p = 0.014 0.34 (0.13) p = 0.007
Between years     0.35 (0.27) p = 0.106
  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]