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Table 2 Two by two contingency table of FI versus GFI

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

  GFI ≥ 4 GFI <4 Total
FI ≥ 0.08 211 (55.1%) 172 (44.9%) 383 (100%)
FI < 0.08 39 (15.3%) 216 (84.7%) 255 (100%)
Total 250 388 638