Additional analyses indicated effect of group only at T2 ( CL : mean = 23.8 ; 95 % confidence interval [ CI ] 23.2-24 .5 ; HC : mean 25.2 ; 95 % CI 24.2-26 .2 ; control : mean = 26.1 ; 95 % CI 24.2-27 .9 ; p = .02 ) .