Christopher R. Pearce

May 1, 2023 | bmjopen.bmj.com | Suzanne Nielsen |Rachelle Buchbinder |Christopher R. Pearce |Dan I Lubman

Findings to dateDemographic and clinical information for the cohort are presented in table 1. Figure 1 shows the geographic distribution of cohort participants at the postcode level. In total, the cohort consists of 676 970 participants with 4 389 185 opioid prescription records from 1 January 2015 to 31 December 2020. There are more females than males in this cohort (57.0% vs 42.7%), and a small proportion (0.3%) did not state their sex or reported a category that was not male or female.