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Table 2 Baseline demographic and clinical characteristics and mortality by grades of frailty

From: Standard laboratory tests to identify older adults at increased risk of death

Baseline Characteristic Grades of the FI
FI-CSHA <0.10 0.10 to 0.22 0.23 to 0.45 >0.45
Number = 78 Number = 349 Number = 539 Number = 47
Mean age, years (±SD) 76.2 ± 6.1 80.2 ± 7.2 82.1 ± 7.1 83.3 ± 5.6
Mean FI-CSHA (±SD) 0.073 ± 0.019 0.164 ± 0.034 0.309 ± 0.062 0.500 ± 0.051
Women (%) 48.7 59.7 65.1 53.2
Institutionalized (%) 1.3 25.5 45.7 4.3
Mortality (%) 25.6 39.8 60.1 70.2
FI-LAB <0.10 0.10 to 0.22 0.23 to 0.45 >0.45
Number = 56 Number = 255 Number = 645 Number = 57
Mean age, years (±SD) 77.8 ± 6.6 80.1 ± 7.3 81.5 ± 7.1 83.6 ± 6.8
Mean FI-LAB (±SD) 0.083 ± 0.019 0.168 ± 0.027 0.310 ± 0.063 0.503 ± 0.040
Women (%) 60.7 67.8 60.5 47.4
Institutionalized (%) 19.6 30.2 35.0 43.9
Mortality (%) 19.6 44.7 54.4 77.2
Combined FI <0.10 0.10 to 0.22 0.23 to 0.45 >0.45
Number = 15 Number = 346 Number = 635 Number = 17
Mean age, years (±SD) 74.5 ± 4.7 79.0 ± 7.0 82.3 ± 7.0 82.6 ± 6.0
Mean combined FI (±SD) 0.080 ± 0.013 0.173 ± 0.033 0.303 ± 0.055 0.501 ± 0.039
Women (%) 53.3 58.1 64.3 41.2
Institutionalized (%) 0 19.9 42.4 5.9
Mortality (%) 6.7 33.5 61.1 88.2
  1. FI, frailty index; FI-CSHA, standard frailty index; FI-LAB, laboratory frailty index; SD, standard deviation.