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Table 3 Descriptive statistics for health-related quality of life scores over time for survivors and age-matched normative values

From: Long-term recovery following critical illness in an Australian cohort

Outcome measure Baseline 1 year 4–5 years Age-matched Australian normative valuesa
n Mean (SD) n Mean (SD) n Mean (SD) Mean (SD)
AQol utility 43 0.70 (0.25) 49 0.77 (0.24) 56 0.74 (0.23) 0.79 (0.19)
SF36v2 PCS 43 43.4 (12.1) 44 46.4 (7.9) 56 46.7 (8.1) 46.8 (11.6)
SF36v2 MCS 43 42.9 (12.8) 44 48.8 (13) 56 48.8 (11.1) 50.1 (10.8)
Physical functioning 43 45.3 (12.3) 44 44.7 (10) 56 43.6 (11.5) 47.4 (10.7)
Role physical 43 40.4 (14.1) 44 46.0 (10.1) 56 46.3 (11.6) 47.5 (12.0)
Bodily pain 43 47.2 (15.7) 44 53.4 (11.0) 56 50.7 (10.7) 47.3 (10.4)
General health 43 41.6 (10.5) 44 44.2 (9.9) 56 45.6 (9.9) 47.4 (11.9)
Vitality 43 39.7 (13.3) 44 46.6 (11.9) 56 50.7 (8.4) 49.0 (10.9)
Social functioning 43 42.3 (15.1) 44 48.4 (12.9) 56 50.0 (8.8) 49.3 (11.1)
Role emotional 43 45.4 (15.3) 44 48.5 (11.5) 56 44.2 (14.3) 49.2 (11.5)
Mental health 43 42.2 (13.5) 44 48.5 (14.2) 56 49.2 (12.0) 49.4 (11.2)
  1. AQoL utility Assessment of Quality of Life Utility score range − 0.04 (state worse than death) to 1.00 (perfect health), SF36v2 Short Form 36 Health Survey version 2 in which higher scores indicate greater performance and data is presented as T scores where the population mean is 50 and the SD is 10, PCS Physical Component Score, MCS Mental Component Score, PF Physical Function Subscale
  2. aAge-matched Australian population for mean (SD) age 64 (14.2) of survivors at 4–5-year follow-up