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Table 3 Resource utilisation over a three month period assessed with the RUD Lite and InterRAI-HC

From: Convergent validity of the interRAI-HC for societal costs estimates in comparison with the RUD Lite instrument in community dwelling older adults

  RUD Lite (n = 656) InterRAI-HC (n = 656) Mean Difference (RUD Lite minus interRAI-HC) Spearman’s ρ (range countries)
Service use category Use of service, n (%) Mean (SD) Use of service, n (%) Mean (SD) Mean (95 % CI)  
Home care
 Home health and domestic care hours 544 (83 %) 62.4 (75.3) 641 (98 %) 68.5 (65.9) −6.1 ( −10.9; −1.4) 0.56* (0.38*- 0.81*)
Physician visits
 Physician visits (GP + outpatient clinic visits 385 (59 %) 1.7 (2.6) 275 (42 %) 1.2 (2.3) 0.5 (0.3; 0.6) 0.62* (0.03–0.75*)
 General practitioner visits 296 (45 %) 1.0 (1.6) - - - -
 Outpatient clinic visits 189 (29 %) 0.7 (1.8) - - - -
Other health care services
 Physical therapy sessions 137 (21 %) 2.6 (6.6) 89 (14 %) 2.6 (7.2) 0.1 (−0.3; 0.5) 0.68* (0.27*–0.82*)
 Occupational therapy sessions 24 (4 %) 0.2 (1.1) 15 (2 %) 0.5 (3.8) −0.3 (−0.7;−0.1) 0.14* (−0.01–1.00*)
 Psychological treatment 5 (1 %) 0.0 (0.2) 4 (1 %) 0.1 (1.1) −0.1 (−0.1;−0.0) 0.67* (0.00-0.86*)
Hospital admissions
 Hospital admission with overnight stay, times 93 (14 %) 0.2 (0.6) 99 (15 %) 0.3 (1.1) −0.1 (−0.2; 0.0) 0.57* (0.13–1.00*)
 Hospital admission with overnight stay, nights 86 (13 %) 1.2 (4.9) 99 (15 %) 2.3 (7.5)a −1.1 (−1.7;−0.6) 0.54* (0.14–1.00*)
 Nights general ward 84 (13 %) 1.2 (4.8) - - - -
 Nights ICU 4 (1 %) 0 (0.2) - - - -
 Emergency room visits without overnight stay 92 (14 %) 0.2 (1.1) 87 (13 %) 0.2 (0.7) 0.0 (0.0; 0.1) 0.35* (0.00–0.74*)
Supportive care services
 Meals on wheels 235 (36 %) 25.1 (39.2) 279 (43 %) 31.4 (39.5) −6.3 (−8.7;−4) 0.72* (0.59*–0.92*)
Informal care
 Informal caregiver time 413 (63 %) 212 (498.9) 483 (74 %) 211.2 (426.4) 0.8 (−28.1; 31.6) 0.61* (0.48*–0.80*)
  1. * p < 0.01
  2. a Estimated using OECD data [17]