| | Studies, n | Patinets, n | Random Effects | Fixed Effects | P | , % | Heterogeneity P |
| Overall | 21 | 9043 | 0.94(0.89,1.00) | 0.93(0.88,0.99) | 0.05 | 2 | 0.43 | Long course of low-dose corticosteroids | 18 | 8665 | 0.93(0.87,0.98) | 0.92(0.86,0.98) | 0.01 | 0 | 0.52 | Short course of high-dose corticosteroid | 3 | 378 | 1.15(0.94,1.42) | 1.17(0.94,1.46) | 0.15 | 0 | 0.82 | before 21s | 6 | 503 | 0.97(0.74,1.26) | 1.01(0.83,1.23) | 0.03 | 0 | 0.64 | after 21s | 15 | 8540 | 0.93(0.88,0.99) | 0.93(0.87,0.99) | 0.8 | 0 | 0.16 | Hydrocortisone concomitant fludrocortisone therapy | 2 | 1540 | 0.88(0.78,0.99) | 0.87(0.78,0.99) | 0.03 | 0 | 0.79 | Hydrocortisone alone therapy | 14 | 7072 | 0.95(0.89,1.02) | 0.94(0.87,1.01) | 0.09 | 0 | 0.49 | Sample size≥400 | 3 | 6594 | 0.90(0.83,0.97) | 0.90(0.83,0.98) | <0.001 | 0 | 0.67 | Sample size<400 | 18 | 2448 | 0.99(0.91,1.08) | 0.99(0.90,1.08) | 0.77 | 0 | 0.46 |
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