a nonsignificant trendP=0.07
The studies indicated a nonsignificant trend for survival benefit in the first year (RR 0.80, 95%CI 0.62-1.02; P=0.07; I 2 =0%).
The studies indicated a nonsignificant trend for survival benefit in the first year (RR 0.80, 95%CI 0.62-1.02; P=0.07; I 2 =0%).