highly significantp =< 0.001
31 The estimated coefficient of the parameter λ 1 that associates the random effect a to the amount of medication cost were small in magnitude for both IPW and CAL-S analyses, but was highly significant ( p =< 0.001 ) .
31 The estimated coefficient of the parameter λ 1 that associates the random effect a to the amount of medication cost were small in magnitude for both IPW and CAL-S analyses, but was highly significant ( p =< 0.001 ) .