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Table 2 Association between the test-retest reliability values and the evidence of clinical stability

From: A critical analysis of test-retest reliability in instrument validation studies of cancer patients under palliative care: a systematic review

Test-retest values Were patients stable in the interim period on the construct to be measured? P*
Poor Fair Good Excellent
N (%) N (%) N (%) N (%)
Global HRQoL scores      0.015
   < 0.70 2 (18.2) 5 (45.5) 4 (36.4) 0 (0)  
   ≥ 0.70 0 (0) 1 (12.5) 5 (62.5) 2 (25.0)  
Pain scores      0.031
   < 0.70 2 (18.2) 3 (27.3) 3 (27.3) 1 (9.1)  
   ≥ 0.70 0 (0) 1 (11.1) 4 (44.4) 4 (44.4)  
  1. HRQoL health-related quality of life.
  2. *p-value for linear trend.