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Table 5 Validity data for the PPME

From: A systematic review of mobility instruments and their measurement properties for older acute medical patients

Author Patient population (≥ 65 years) n 2 level scoring system 3 level scoring system
Convergent validity    Total PPME score correlation with: Total PPME scores correlate highly with:
Winograd et al. [29] Older patients hospitalised with mobility impairment 88 Self reported physical functioning and mobility scores, r = 0.61, p < 0.001. Self reported physical functioning and mobility scores, r = 0.73, p < 0.001.
Winograd et al. [29] Hospitalised older medical and surgical patients 154 Self reported physical functioning and mobility scores, r = 0.71, p < 0.001. Self reported physical functioning and mobility scores, r = 0.77, p < 0.001.
  Hospitalised older medical and surgical patients 154 ADL scores, r = 0.70, p < 0.001. ADL scores, r = 0.68, p < 0.001.
Discriminant validity    Total PPME score correlation with: Total scores have low correlation with:
Winograd et al. [29] Older patients hospitalised with mobility impairment 97 MMSE scores, r = 0.36, p < 0.001. MMSE scores, r = 0.38, p < 0.001.
Winograd et al. [29] Hospitalised older medical and surgical patients 154 MMSE scores, r = 0.36, p < 0.001. MMSE scores, r = 0.38, p < 0.001.
  Hospitalised older medical and surgical patients 86 Geriatric depression scores, r = 0.23, p < 0.001. Geriatric depression scores, r = 0.28, p < 0.001.