Table 3. Effect of glycemic control (stringent or less stringent) on unfavourable TB treatment outcomes, summarized as unadjusted relative risk (RR)^* [40–47].

Study ID	Reference group	Exposed group	Unadjusted RR	95% CI
All unfavourable end (TB) treatment outcome
Chiang CY_2015_Plos One	Poor glycemic control (HbA1c>9)	Less stringent glycemic control (HbA1c 7–9)	1.53	0.96, 2.46
		Stringent glycemic control (HbA1c<7)	1.89	1.12, 3.20
Mi F_2013_TMIH^	Poor glycemic control (FPG>10mmol/l)	Less stringent glycemic control (FPG7-10mmol/l)	0.91	0.18, 4.43
		Stringent glycemic control (FPG<7mmol/l)	1.03	0.21, 5.07
Magee MJ_2013_International J of Infectious diseases	Poor glycemic control (no specific criteria)	Glycemic control	1.08	0.54, 2.16
Nandakumar KV_2013_Plos One	Poor glycemic control (FBG>100 mg/dl and PPBS/RBG>140 mg/dl)	Glycemic control	0.52	0.25, 1.07
Tabarsi P_2014_Journal of Diabetes and Metabolic Disorder	Poor glycemic control (HbA1c≥6.5)	Glycemic control	1.13	0.2, 6.44
Yoon YS_2017_Thorax	Poor glycemic control (HbA1c≥7)	Glycemic control	0.55	0.22, 1.36
Mahishale_2017_Iran J MS	Poor glycemic control (HbA1c≥7)	Glycemic control	0.18	0.09, 0.36
Culture non-conversion at 2 months
Park SW_2012_Eur J ClinMicrobiol Infect Dis	Poor glycemic control (HbA1c>7)	Glycemic control	0.62	0.14, 2.71
Yoon YS_2017_Thorax	Poor glycemic control (HbA1c≥7)	Glycemic control	0.23	0.05, 0.94
Sputum smear non-conversion at 2 months
Mi F_2013_TMIH^	Poor glycemic control (FPG>10mmol/l)	Less stringent glycemic control (FPG7-10mmol/l)	1.50	0.57, 3.90
		Stringent glycemic control (FPG<7mmol/l)	0.65	0.19, 2.15
Nandakumar KV_2013_Plos One	Poor glycemic control (FBS>100 mg/dl and PPBS/RBS>140 mg/dl)	Glycemic control	0.99	0.65, 1.51
Mahishale_2017_Iran J MS	Poor glycemic control (HbA1c≥7)	Glycemic control	0.12	0.06, 0.23

*data extracted from the narrative text/tables;

^End IP and end treatment outcomes reported among those with glycemic status at 2 months and 6 months respectively