Table 3

Long-term Medicare costs associated with AME

Base GEE Population Averaged ModelFully-Specified GEE Population Averaged Model
Coefficientp ValueMarginal effect (%)Coefficientp ValueMarginal effect (%)
AME2.3284130.000926.162.1340.000744.92
Post-AME1.5110.000353.131.2750.000257.99
Time (month)0.0050.0000.480.0070.0000.70
Post-AME×Time−0.0160.000−1.62−0.0150.000−1.48
Constant6.1404420.0005.0480.000
Wald χ2 (df)6123.54 (4)10 009.31 (33)
Prob (χ2)0.0000.000
  • Estimates were from population averaged models. Fully-Specified Model controlled for age, gender, marital status, race, income, education level, self-rated health, count of comorbidities, functional status, ADLs and IADLs, body weight, regional location, rural–urban location and cohort membership.

  • ADL, activities of daily living; AME, adverse medical event; GEE, generalised estimation equation; IADL, instrumental activities of daily living.