Outcomes Number of studies Diabetic population Diabetic population Non diabetic population Non diabetic population OR (95% CI) P value Heterogeneity Heterogeneity
Total Events Total Events I2 P value
Fatigue 9 608 277 1658 622 1.22 [0.79, 1.88] 0.37 76% <0.00001
Fever 11 776 535 2534 1836 0.84 [0.61, 1.16] 0.3 59% 0.006
Headache 7 457 46 906 133 0.66 [0.41, 1.05] 0.08 28% 0.21
Myalgia 6 403 71 1095 162 1.08 [0.78, 1.49] 0.65 0% 0.58
Nausea and vomiting 7 512 76 1325 185 0.98 [0.71, 1.35] 0.92 0% 0.42
Anorexia 4 269 92 852 290 1.10 [0.77, 1.59] 0.6 24% 0.27
Cough 10 637 449 1739 1100 1.19 [0.96, 1.47] 0.1 0% 0.51
Diaarhea 9 588 112 1447 234 1.15 [0.72, 1.84] 0.55 55% 0.02
Dyspnea 6 382 214 1099 390 2.30 [1.37, 3.84] 0.001 72% 0.003
Palipitation 2 145 22 250 38 0.91 [0.51, 1.64] 0.76 0% 0.87
Pharyngalgia 2 147 12 695 60 1.44 [0.39, 5.30] 0.59 63% 0.1
Shortness of breath 2 143 73 153 70 1.13 [0.68, 1.87] 0.63 0% 0.68
Polypnea 2 147 44 361 102 1.74 [0.60, 5.09] 0.31 76% 0.04
Sore throat 2 157 15 196 18 1.21 [0.42, 3.48] 0.72 41% 0.19
Sputum 2 125 38 193 59 0.92 [0.34, 2.49] 0.87 68% 0.08
Chest pain 2 124 13 279 22 1.06 [0.35, 3.24] 0.92 41% 0.19
Expectoration 2 124 58 279 94 1.42 [0.90, 2.23] 0.13 0% 0.18