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Table 2 Postoperative adverse events and other outcomes

From: Postoperative tight glycemic control significantly reduces postoperative infection rates in patients undergoing surgery: a meta-analysis

   TGC CGC Overall event rates (%) M-H pooled RR Heterogeneity
Events Studies N+(%) Total N+(%) Total RR/ SMD (95%CI) p I 2 (%) p
Infection [1, 15,16,17,18,19,20,21,22,23,24,25,26,27] 231(9.4%) 2464 392(15.8%) 2488 12.6% 0.586(0.504, 0.680) <  0.001 3.9 0.407
Sepsis [1, 19, 20, 23, 25, 26] 48(2.7%) 1753 82(4.7%) 1763 3.7% 0.594(0.418, 0.842) 0.003 <  0.001 0.945
Pneumonia [19, 20, 23,24,25,26] 22(2.0%) 1079 31(2.9%) 1078 2.5% 0.692(0.400, 1.196) 0.187 <  0.001 0.511
Urinary tract infection [19, 20, 23, 25, 30] 36(3.6%) 988 43(4.4%) 980 4.0% 0.843(0.548, 1.297) 0.437 <  0.001 0.682
Wound infection [19, 20, 22,23,24,25,26,27] 54(4.6%) 1186 86(7.2%) 1188 6.1% 0.620(0.422, 0.910) 0.015 18.8 0.287
Short-term mortality [1, 14,15,16,17,18,19,20,21,22, 24, 27] 85(3.8%) 2233 122(5.4%) 2259 4.6% 0.692(0.527, 0.909) 0.008 <  0.001 0.769
Any mortality [1, 14,15,16,17,18,19,20,21,22,23,24,25,26,27] 159(6.3%) 2514 204(8.0%) 2539 7.2% 0.792(0.653, 0.960) 0.018 <  0.001 0.738
Neurological dysfunction [14, 18, 22, 24, 26] 8(1.1%) 752 18(2.4%) 761 1.7% 0.499(0.219, 1.137) 0.098 <  0.001 0.651
Acute renal failure [1, 22, 24, 26] 46(3.3%) 1413 78(5.4%) 1439 4.3% 0.610(0.359, 1.038) 0.068 16.0 0.312
Hypoglycemia [1, 16,17,18,19,20, 22,23,24, 27] 467(22.3%) 2097 233(11.0%) 2118 16.6% 3.145(1.928, 5.131) <  0.001 81.4 <  0.001
Severe hypoglycemia [15, 16, 19,20,21, 24, 26] 34(2.8%) 1207 8(0.7%) 1210 1.7% 3.821(1.796, 8.127) <  0.001 <  0.001 0.894
ICU stay [1, 15, 16, 18, 23, 26, 27]       −0.428(−0.833, −0.022) 0.039 96.6 <  0.001
Mechanical ventilation [1, 15, 16, 18, 23, 26, 27]       −0.275(−0.695,0.146) 0.201 96.9 <  0.001
LOS [15, 16, 18,19,20, 26, 27]       −0.233(−0.496,0.030) 0.082 85.4 <  0.001
  1. N+ the number of patient with adverse event, Total the number of the total patients, RR relative risk, SMD standardised mean difference, LOS length of hospital stay