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Table 5 Mean GFI domain scores per FI group

From: Identifying frailty: do the Frailty Index and Groningen Frailty Indicator cover different clinical perspectives? a cross-sectional study

  FI < 0.08 FI ≥ 0.08 Significance
  n = 255 n = 383 p-value
Physical GFI domain    
 n 250 378  
 mean (SD) 0.60 (0.95) 1.90 (1.55) < 0.001a
Cognitive GFI domain    
 n 254 380  
 mean (SD) 0.26 (0.44) 0.47 (0.50) < 0.001a
Social GFI domain    
 n 254 378  
 mean (SD) 0.47 (0.87) 1.10 (1.18) < 0.001a
Psychological GFI domain    
 n 255 381  
 mean (SD) 0.42 (0.72) 0.79 (0.86) < 0.001a
  1. a Differences were evaluated with the Independent Samples t-test. Numbers per group differ because 15 patients have incomplete data on one or more GFI domains. Number of questions and score range per domain: Physical domain: 9 questions, score range 0–9; Cognitive domain: 1 question, score range 0–1; Social domain: 3 questions, score range 0–3, Psychological domain: 2 questions, score range 0–2.