Rates of normal menstruation , ovulation , and pregnancy in the LOD group were higher than in the Met group : 76.4 % ( 42/55 ) vs. 58.2 % ( 32/55 ) , P < 0.04 ; 50.8 % ( 11/258 ) vs. 33.5 % ( 94/281 ) , P < 0.001 ; 38.2 % ( 21/55 ) vs. 20.0 % ( 11/55 ) , P < 0.03 .