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Table 2 EQ-5D index, Mortality Rate, and Quality-adjusted Life Years (QALY) throughout remainder of lifetime by Depressive Symptom Severity Categories, U.S. Adults Aged 65 Years and Older

From: Incremental decreases in quality-adjusted life years (QALY) associated with higher levels of depressive symptoms for U.S. Adults aged 65 years and older

PHQ-9 score Depression severity categories Number EQ-5Da S.E. Mortality rateb S.E. QALYc S.E.
0–27 Total 3,680 0.827 0.005 3.51 0.18 12.3 1.1
0–4 None-minimal 2,863 0.875 0.004 2.99 0.18 14.0 1.4
5–9 Mild 494 0.680 0.018 4.69 0.60 7.8 1.0
10–14 Moderate 122 0.482 0.038 4.97 1.11 4.7 0.7
15–27 Moderately severe/ severe 51 0.353 0.063 8.15 2.81 3.3 1.3
  1. a EQ-5D index, adjusted for age and sex in subgroups
  2. b Mortality rate per 100 person-years, adjusted for age and sex in subgroups
  3. c Quality-adjusted life years, adjusted for age and sex in subgroups