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Table 2 Description of data extracted from the retained studies included in the meta-analysis searching for an association between T. gondii and diabetes mellitus

From: The association between Toxoplasma gondii and type 2 diabetes mellitus: a systematic review and meta-analysis of human case-control studies

Reference n Age DM+ (n) CTRL (n) DM & TG+, n (%) CTRL & TG+, n (%) OR (95% CI) p value Weight (%)
Fixed Random
Li et al. (Li et al. 2018) 800 Adults 400 400 94 (23.5%) 47 (11.8%) 2.31 (1.57–3.38) < 0.001 15.82 11.95
Khalili et al. (Khalili et al. 2018) 200 Adults 100 100 63 (63.0%) 59 (59.0%) 1.18 (0.67–2.09) 0.562 7.14 10.05
Molan & Ismail (Molan and Ismail 2017) 584 Adults 381 203 248 (65.1%) 68 (33.4%) 3.70 (2.58–5.30) < 0.001 17.87 12.17
Alvarado-Esquivel et al. 312 Adults 156 156 10 (6.4%) 5 (3.2%) 2.07 (0.69–6.20) 0.18 1.92 5.62
Saheb (Saheb 2017) 270 Adults 172 98 96 (55.8%) 38 (38.8%) 1.99 (1.20–3.31) 0.007 9.04 10.70
Nihad & Hamad (Nihad and Hamad 2017) 145 Adults 100 45 31 (31.0%) 5 (11.1%) 3.59 (1.29–9.99) 0.010 2.21 6.11
Saki et al. (Saki and Shafieenia 2016) 220 Adults 110 110 47 (42.7%) 24 (21.8%) 2.67 (1.48–4.82) 0.001 6.65 9.84
Siyadatpanah et al. (Siyadatpanah et al. 2013) 300 Adults 150 150 79 (52.7%) 76 (50.6%) 1.08 (0.69–1.70) 0.729 11.26 11.24
Shirbazou et al. (Shirbazou et al. 2013) 184 Adults 91 93 55 (60.4%) 38 (40.9%) 2.21 (1.23–3.99) 0.008 6.65 9.84
Gokce et al. (Gokce et al. 2008) 1057 15-88 807 250 457 (56.6%) 56 (22.4%) 4.52 (3.26–6.28) < 0.001 21.44 12.46
Total (fixed) 4072 2467 1605 1180 (47.8%) 416 (25.9%) 2.57 (2.22–2.99) < 0.001 100% 100%
Total (random) 4072 2467 1605 1180 (47.8%) 416 (25.9%) 2.32 (1.66–3.24) < 0.001 100% 100%
  1. n, number of subjects; age is recorded in years; CI, confidence interval; DM+, subjects with diabetes mellitus; DM−, subjects without diagnosed diabetes mellitus; DM & TG+, subjects with diabetes mellitus and T. gondii infection; non-DM & TG+, subjects without diabetes mellitus and T. gondii infection; OR, odds ratio.