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Table 1 Characteristics and clinical parameters of individuals, by activity group

From: Exploring patterns of accelerometry-assessed physical activity in elderly people

Characteristic All Rare Average Frequent P value
  (n = 168) (n = 42) (n = 84) (n = 42)  
Age (years) 73.0 (65.0,86.0) 80.5 (66.0,87.0) 72.5 (66.0,84.0) 70.0 (65.0,79.0) <.0001
Gender, male (%) 46.4 (n = 78) 35.7 (n = 15) 48.8 (n = 41) 52.4 (n = 22) 0.2556
BMI (kg/m2) 27.2 (22.6,35.0) 28.8 (23.6,37.6) 27.0 (21.3,34.7) 26.9 (22.8,32.5) 0.0272
Lung function      
 FVC (pp.) 102.7 (73.5,128.0) 92.3 (69.1,123.9) 103.2 (77.9,133.2) 112.3 (76.4,127.1)  
 FEV1 (pp.) 106.4 (65.4,130.8) 85.2 (62.8,130.8) 106.4 (68.2,132.6) 112.5 (67.5,128.3)  
 FEV1/FVC (L) 0.74 (0.61,0.85) 0.72 (0.61,0.85) 0.74 (0.62,0.86) 0.77 (0.66,0.84)  
Lung group, better (%) 54.4 (n = 92) 38.1 (n = 16) 56.0 (n = 47) 69.1 (n = 29) 0.0164
Multimorbidity, yes (%) 51.8 (n = 87) 69.1 (n = 29) 47.6 (n = 40) 42.9 (n = 18) 0.0312
Disability, yes (%) 41.7 (n = 70) 61.9 (n = 26) 41.7 (n = 35) 21.4 (n = 9) 0.0008
6MWD (m) 466 (274,625) 369 (235,486) 467 (290,593) 536 (379,668) <.0001
  1. P-values result from Kruskal-Wallis for metric variables and Chi2-test for categorical variables. BMI = body mass index, 6MWD = six minute walking distance, pp = percent predicted, L = liter.
  2. Median (5%, 95%).