The epidemiology of tuberculosis-associated hyperglycemia in individuals newly screened for type 2 diabetes mellitus: systematic review and meta-analysis

Table 2 Newcastle Ottawa Score Assessment

Cohort studies	Aftab et al (2017) [22]	Kishore et al (1971)	Gupta et al (2018) [21]	Oluboyo et al (1990) [18]	Basoglu et al(1999) [20]	Singh et al (1984) [17]	Boillat et al (2016)	Yan Lin et al (2017) [23]	Kornfeld et al, (2016) [19]	Kubjane et al (South Africa, 2019)	Philips et al (South Africa 2017) [24]
Selection (maximum 4 points)
Representativeness of the exposed cohort	*		*	*	*	*		*	*	*	*
Selection of the non-exposed cohort?										*
Ascertainment of exposure	*		*	*	*	*		*	*	*	*
Demonstration that outcome of interest was not present at start of study	*		*	*	*	*		*	*	*	*
Comparability (maximum 2 points)
Comparability of cohorts on the basis of the design or analysis				*	*			*	*	*	*
Study controls for at least 3 additional risk factors?								*	*	*
Exposure (maximum 3)
Assessment of outcome/Assessment of outcome Independent blind assessment, record linkage	*		*	*	*	*		*	*	*	*
Was follow-up long enough for outcomes to occur?	*		*	*	*	*		*	*	*	*
Loss to follow up of NDM cohort < 10% or unclear	*		*	*		*		*		*	*
Total score: 9	6		6	7	6	6		8	7	9	7
Case control studies
Selection of cases and controls (maximum 4 points)
Case definition adequate		*					*
Representativeness of the cases		*					*
Selection of controls		*					*
Definition of control		*					*
Comparability (maximum 2)
Comparability of cases and controls on the basis of the design or analysis		*					*
Study controls for at least 3 additional risk factors
Exposure (maximum 3)
Ascertainment of exposure		*					*
Same method cases and controls		*					*
Non-response rate < 10% or unclear		*					*
Total (maximum 8)		8					8

ISSN: 1471-2334