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Table 1 Characteristics of the study sample

From: Do changes in frailty, physical functioning, and cognitive functioning predict mortality in old age? Results from the Longitudinal Aging Study Amsterdam

Characteristics

 

Total number of participants, n [%]

995 [100.0]

Age

76.5 (72.1; 82.5), 68.0 – 91.6

Age brackets

  – 1st Tertile

70.6 (69.4; 72.0), 68.0 – 73.5

  – 2nd Tertile

76.5 (74.8; 78.4), 73.5 – 80.4

  – 3rd Tertile

84.5 (82.5; 87.2), 80.5 – 91.6

Female, n [%]

523 [52.6]

Education, n [%]

  – Low

388 [39.0]

  – Medium

316 [31.8]

  – High

291 [29.2]

Living alone, n [%]

417 [43.1]

Number of chronic diseases

2.0 (1.0; 3.0), 0.0 – 8.0

Health indicators – current statusa

  Frailty Phenotype, n [%]

    – Score 0

355 [35.7]

    – Score 1

311 [31.3]

    – Score 2

179 [18.0]

    – Score 3

104 [10.5]

    – Score 4

43 [4.3]

    – Score 5

3 [0.3]

  Frailty Index (range 0 – 1)

0.2 (0.1; 0.3), 0.0 – 0.6

  Grip strength, in kg

24.0 (18.5; 32.2), 1.0 – 62.5

  Walking speed, in seconds

9.0 (7.0; 11.0), 3.0 – 102.0

  Mini-Mental State Examination (range 0 – 30)

28.0 (26.0; 29.0), 9.0 – 30.0

Health indicators – three-year changeb

  Frailty Phenotype

0.0 (0.0; 1.0), -3.0 – 4.0

  Frailty Index

0.03 (-0.01; 0.07), -0.27 – 0.27

  Grip strength

-2.5 (-6.5; 0.5), -28.0 – 11.5

  Walking speed

1.0 (0.0; 3.0), -12.0 – 83.0

  Mini-Mental State Examination

0.0 (-1.0; 1.0), -15.0 – 7.0

  1. Data are presented as median (interquartile range), min – max, except as noted
  2. aCurrent status of health indicators was measured in 1998
  3. bThree-year change was the difference in health indicators  by subtracting the measurement in 1998 minus the measurement in 1995