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Table 2 Spearman’s rho correlations between PUQOL-R and SF12 scales (convergent validity)

From: A patient-reported pressure ulcer health-related quality of life instrument for use in prevention trials (PU-QOL-P): psychometric evaluation

Scale (n items) Physical function (2) Role physical (2) Bodily pain (1) General health (1) Vitality (1) Social function (1) Role emotional (2) Mental health (2)
Pain (12) 0.072 0.109a 0.320a 0.220a 0.168a 0.046 0.201a 0.261a
Exudate (8) 0.005 0.112 0.036 0.046 0.237 0.183 0.229 0.279b
Odour (6) 0.118 0.235 0.109 0.149 0.022 0.154 0.160 0.063
Sleep (7) 0.143a 0.137a 0.283a 0.203a 0.110b 0.008 0.246a 0.282a
Movement & mobility (9) 0.151a 0.133a 0.350a 0.214a 0.171a 0.036 0.299a 0.300a
Daily activities (6) 0.086 0.071 0.197a 0.139a 0.027 0.046 0.238a 0.218a
Malaise (5) 0.030 0.017 0.229a 0.205a 0.024 0.076 0.293a 0.274a
Emotional well-being (15) 0.034 0.037 0.227a 0.179a 0.012 0.030 0.323a 0.275a
Self-consciousness and appearance (7) 0.034 0.053 0.219a 0.119a 0.053 0.045 0.249a 0.206a
Itchiness (1) 0.006 0.080 0.130a 0.071 0.033 0.030 0.100b 0.100b
  1. aCorrelation is significant at the 0.01 level (2-tailed)
  2. bCorrelation is significant at the 0.05 level (2-tailed)