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Table 3 Correlations Between Measures of Comorbidity and QOL Outcomes (N = 1562)

From: Subjective assessments of comorbidity correlate with quality of life health outcomes: Initial validation of a comorbidity assessment instrument

  Self reported disease burden1 Chart review number of conditions Self reported number of conditions3 Charlson comorbidity score [7] Rx-risk score [4]
Overall health status* (n = 150) 0.60 p < 0.001 0.56 p < 0.001 0.477 p < 0.001 0.48 p < 0.001 0.17 P = 0.037
Physical functioning* (n = 137) -0.63 p < 0.001 -0.52 p < 0.001 -0.482 p < 0.001 -0.41 p < 0.001 -0.18 p = 0.035
Depression screen* (n = 153) -0.29 p < 0.001 -0.25 p = 0.002 -0.240 p = 0.003 -0.12 p = 0.140 -0.05 p = 0.559
Self-efficacy* (n = 145) -0.32 p < 0.001 -0.22 p = 0.008 -0.305 p < 0.001 -0.14 p = 0.096 0.10 p = 0.234
  1. * For health status, a higher score implies worse perceived health; for other outcomes, a higher number implies a better functioning, less depression or greater self-efficacy.
  2. 1 Total score of degree of limitation due to each positive condition (1 = not at all to 5 = a lot).
  3. 2 Due to missing scale scores, total n ranged from 137 (physical activity) to 154 (social activity).
  4. 3 Number of conditions from the list that were positively reported by the respondent.