Table 3

Standardised incidence ratios (SIRs) and 95% confidence intervals (CIs) for cancer of the stomach distal to the cardia among pernicious anaemia patients, stratified by follow up duration and age at index hospitalisation

TotalWithout alcohol related diseases†
CharacteristicObs*SIR95% CIObs*SIR95% CI
*Observed number of cancer cases.
†Person years before the onset of comorbid diseases were allocated to the comorbidity negative stratum.
Follow up (y)
p value for trend0.560.57
Age at index hospitalisation
p value for trend<0.01<0.01