| Included stuides (N) | ARG/PG (or control group) | Relative risk (95 % CI) | P value for overall effect | P value for heterogeneity |
---|---|---|---|---|---|
The ratio of NRDS | 4 | 122/98 | 0.49 [0.29,0.84] | 0.009 | 0.13 |
The ratio of ICH | 2 | 66/44 | 0.13 [0.03,0.48] | 0.002 | 0.90 |
Apgar score(>7) (1Â min) | 4 | 110/101 | 0.49 [0.23,1.03] | 0.06 | 0.14 |
Apgar score(>7) (5Â min) | 4 | 101/94 | 0.28 [0.07,1.16] | 0.08 | 0.05 |
Neonatal mortality | 2 | 56/55 | 0.82 [0.19,3.66] | 0.80 | 0.28 |