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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

^β1 (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]