Table 4

Adjusted Percentage Change in Year 2 Total Health Care Expenditures Associated With Extended-Hours Access With Progressive Adjustment for Year 2 Health Care Use

AnalysisAdjusted % Change in Year 2 Total Health Care Expenditures (95% CI)P Value
Base model−10.4 (−13.4 to −7.2)<.01
Model with progressive adjustment for year 2:
 Emergency department and inpatient expenditures−9.1 (−11.8 to −6.3)<.01
 + Numbers of office visits and prescription medications−8.4 (−11.0 to −5.8)<.01
 + Prescription medication expenditures−5.7 (−8.1 to −3.3)<.01
 + Office visit expenditures−4.3 (−6.5 to −2.0)<.01
  • Note: All analyses adjusted for year 1 age, sex, race/ethnicity (white [reference], Hispanic, black, other), income (≤100% [reference], 100% to <125%, 125% to <200%, 200% to <400%, or ≥400% of federal poverty level), education (no high school [reference], some high school, high school graduate, some college, college graduate), Metropolitan Statistical Area, Census region (Northeast [reference], Midwest, South, West), health insurance (private [reference], public, none), total health care expenditures, hospitalizations (any vs none), emergency department visits (any vs none), number of office visits, and number of prescription medications; year 2 count of 8 chronic health conditions, the 12-Item Short Form Health Survey (SF-12) Mental Component Summary and Physical Component Summary scores, and self-rated health; and Medical Expenditures Panel Survey panel year.