Morbidity was higher with infant HIV infection ( HR : 2.61 ; 95 % CI : 1.40-4 .85 ; p = 0.002 ) and maternal plasma viral load ( PVL ) > 100,000 copies ml ( HR : 1.87 ; 95 % CI : 1.01-3 .48 ; p = 0.048 ) , and lower with maternal age < 20 years ( HR : 0.25 ; 95 % CI : 0.07-0 .88 ; p = 0.031 ) .
