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Table 1 Mean pre-injury EQ-5D summary score assessed 1 week (T1) and 12 months (T2) post-injury and intraclass correlation coefficients (ICC)

From: Agreement between retrospectively assessed health-related quality of life collected 1 week and 12 months post-injury: an observational follow-up study

 

n

Pre-injury EQ-5D assessed at T1 (1 week post-injury)

Pre-injury EQ-5D assessed at T2 (12 months post-injury)

P-value

ICC (95% CI)

Total

1166$

0.906 (SD 0.17)

0.905 (SD 0.17)

0.886

0.595 (0.56, 0.63)

Gender

 Males

615

0.930 (SD 0.14)

0.922 (SD 0.16)

0.208

0.540 (0.48, 0.59)

 Females

551

0.879 (SD 0.18)

0.886 (SD 0.18)

0.324

0.626 (0.57, 0.67)

Age

  < 65 years

575

0.940 (SD 0.12)

0.932 (SD 0.16)

0.157

0.525 (0.46, 0.58)

  ≥ 65 years

591

0.872 (SD 0.19)

0.879 (SD 0.18)

0.343

0.651 (0.56, 0.66)

Educational level

 Low

309

0.849 (SD 0.22)

0.862 (SD 0.20)

0.242

0.551 (0.47, 0.62)

 Middle

450

0.916 (SD 0.15)

0.914 (SD 0.17)

0.760

0.640 (0.58, 0.69)

 High

380

0.943 (SD 0.11)

0.936 (SD 0.14)

0.217

0.539 (0.46, 0.61)

 Unknown

27

0.851 (SD 0.15)

0.809 (SD 0.20)

0.214

0.535 (0.21, 0.76)

Comorbidity status

 No comorbidity

498

0.975 (SD 0.08)

0.960 (SD 0.11)

0.003*

0.408 (0.33, 0.48)

 Comorbidity

649

0.851 (SD 0.19)

0.862 (SD 0.20)

0.138

0.575 (0.52, 0.63)

 Unknown

19

0.955 (SD 0.09)

0.919 (SD 0.13)

0.152

0.505 (0.10, 0.77)

Injury Severity Score

 ISS < 16

1093

0.905 (SD 0.17)

0.904 (SD 0.17)

0.907

0.590 (0.55, 0.63)

 ISS > =16

65

0.928 (SD 0.16)

0.924 (SD 0.19)

0.813

0.636 (0.47, 0.76)

 Unknown

8

0.819 (SD 0.13)

0.820 (SD 0.18)

0.980

0.825 (0.35, 0.96)

PTSD status&

 No PTSD (IES < 35)

696

0.927 (SD 0.14)

0.932 (SD 0.13)

0.249

0.564 (0.51, 0.61)

 PTSD (IES > =35)

121

0.829 (SD 0.23)

0.816 (SD 0.25)

0.514

0.582 (0.45, 0.69)

 Unknown

349

0.891 (SD 0.18)

0.882 (SD 0.20)

0.325

0.592 (0.52, 0.66)

  1. SD standard deviation, ICC Intraclass correlation coefficient, ISS injury severity score
  2. $ Patients who completed the pre-injury EQ-5D shortly after and 12 months after sustaining an injury
  3. & PTSD status was measured with the Impact of Event Scale (IES) 12 months post-injury
  4. *p < 0.05