Table 1.

Results of longitudinal analysis of morphine consumption in two studies using LMEM

Trial/patients	Effect estimate	95% CI	P-value
TKA (n=102)	1.0	−4.7, 6.7	0.73
THA (n=101)	−1.0	−5.4, 3.3	0.63

Notes: Differences in treatment effect between the placebo and intervention groups was not statistically significant for either TKA or THA patients. TKA and THA analyses done with multiple imputation (m=5).

Abbreviations: CI, confidence interval; LMEM, linear mixed effects model; MI, multiple imputation; THA, total hip arthroplasty; TKA, total knee arthroplasty.