TABLE 4.

Risk of bias of the studies that were included, assessed by the researchers

First author, (year)	Ascertainment DM	Ascertainment TB	Same ascertainment method cases and controls	Selection of cases/exposed	Selection of controls	Non‐response rate	Representativeness exposed/cases	Representativeness controls	Handling incomplete outcome data
Kubjane et al. (2020) a [21]
Sinha et al. (2018) [25]
Lawson et al. (2017) [26]
Boillat‐Blanco et al. (2016) [22]
Senkoro et al. (2016) [23]
Bailey et al. (2016) [27]
Haraldsdottir et al. (2015) [24]
Bates et al. (2012) [28]
Faurholt‐Jepsen et al. (2011) [20]

Green: low risk of bias, orange: medium risk of bias or unclear, red: high risk of bias.

^a This study was a cohort study with a follow‐up rate of 75% after 3 months of follow‐up.