Table 1 Description of the studies included in the systematic review and meta- analysis
Author | Diagnostic | Sample size | Age | Mean/median baseline blood glucose of newly screened patients for type 2 DM | n: newly detected hyperglycemia at baseline | n: unresolved hyperglycemia and % | Duration of follow up | Independent risk factors | Loss to follow up |
|---|---|---|---|---|---|---|---|---|---|
Singh et al. (India, 1984) [17] | OGTT | 52 | Range 19–60 years with a mean age of 30.5 years | NA | 23 | 6 (26%) | 3 months |  | No loss to follow up |
Kishore et al. (India,1971) | OGTT | 90 | Mean age of patients: 29.4 | NA | 19 | 5 (26%) | 3 months |  | No loss to follow up |
Olubuyo et al. (Nigeria, 1990) [18] | OGTT | 54 | Mean age of patients: 34.9 (SD: 14.4) | NA | 23 | 7 (30%) | 3 months |  | No loss to follow up |
Kornfeld et al. (India, 2016) [19] | OGTT | 153 | Mean age of patients with newly diagnosed DM: 46.7 (± 10.7) | HbA1c: 6.8 (6.2–9.3) | 33 | 27 (82%) | 3 months |  | Loss to follow up (n = 24); unclear which patients |
Basoglu et al. (Turkey, 1999) [20] | OGTT | 58 | Mean age of patients: 41.9 (15–82 years) | NA | 11 | 10 (91%) | 3 months |  | Loss to follow up (n = 17); unclear which patients |
Boillat et al. (Tanzania, 2016) | AIC | 530 | Mean age of patients 35.9 (SD: 12) | NA | 296 | 86 (29%) | 5 months |  | Loss to follow up (n = 15); unclear which patients |
Gupte et al. (India, 2018) [21] | AIC | 392 | Median age of patients: 31 (IQR: 23–44) | Median 8.5% (IQR: 6.7–11.5) | 30 | 23 (77%) | 6 months |  | No loss to follow up |
Aftab et al. (Pakistan, 2017) [22] | FPG | 462 | Mean age of patients with newly diagnosed DM: 43 (95% CI: 41–45) | NA | 195 | 74 (38%) | 6 months |  | Unclear if there is loss to follow up |
Lin et al. (China, 2017) [23] | FPG | 270 | Mean age of patients: 42.1 years | NA | 13 | 9 (69%) | 6 months | Association between HIV+, smoking and unstable blood glucose levels during TB treatment (aOR: 6.67, 95% CI: 1.24–35.71) and (aOR: 2.66, 95% CI: 1.37–5.2) respectively. | No loss to follow up |
Kubjane et al. (South Africa, 2019) | AIC | 390 | Median age of patients with newly diagnosed DM: 36 (IQR: 30–43) | Median HbA1c: 6.7 (IQR: 6.5–7) | 25 | 6 (24%) | 3 months | HIV+ patients have a higher odds of being newly diagnosed with DM at baseline (OR:1.7; 95% CI: 1.0–2.9 | Loss to follow up (n = 6) |
Philips et al. (South Africa, 2017) [24] | FPG | 29 | Mean age of patients 33.95 (SD: 12.02) | Mean fasting insulin 28.20 (SD: 33.21) | 9 | 6 (66.7%) | 5 months |  | Loss to follow up (n = 30) |