Figure 1. Cumulative Incidence of Diabetes by Cancer Status.

Cumulative incidence was calculated using Kaplan-Meier curves. Participants who developed cancer contributed person-time to the exposed group from the time of cancer development. Unexposed person-time was contributed by participants who did not develop cancer and by participants who developed cancer prior to diabetes development. To reduce the potential impact of surveillance bias, we excluded from the analysis cases of diabetes that occurred in the first 31 days after cancer diagnosis (n = 72).