Incidence rate of CRC after IBS diagnosis and the incidence rate ratio.

Incident rate ratios in bold are statistically significant and have a p-value †n is the number of people diagnosed with CRC within the stratum;‡% is the proportion that these diagnoses represent within the stratum;††N is the total number of patients contributing time to the stratum. The rates are split by time since IBS was diagnosed and the current age of the patient. This means, for example, that the risk of CRC for someone who is 34 and was diagnosed with IBS 6 years ago can be seen as being the same (1.0) someone without IBS.Incidence rate of CRC after IBS diagnosis and the incidence rate ratio.