highly significantp = 1.7 × 10 -5
There was also highly significant difference among the three different genotype groups in terms of total morphine self-administered (p = 1.7 × 10 -5 ) and weight-adjusted morphine (p = 6.6 × 10 -5 ) (Table 1 ).
There was also highly significant difference among the three different genotype groups in terms of total morphine self-administered (p = 1.7 × 10 -5 ) and weight-adjusted morphine (p = 6.6 × 10 -5 ) (Table 1 ).
Paying class was marginally significant (p = 0.048) with private patients having lower mean scores.