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. 2020 Feb 26;10:3472. doi: 10.1038/s41598-020-59458-6

Table 1.

Baseline characteristics of the participants according to baseline fitness and PA levels.

Total Chair stand test quartile Physical Activity Level
Q1 (n = 2340) Q2 (n = 1493) Q3 (n = 1631) Q4 (n = 1410) p value Light (n = 4118) Moderate (n = 1297) High (n = 1459) p value
N 6874 2340 1493 1631 1410 4118 1297 1459
Age (years) 64.95 ± 4.92 65.84 ± 4.78 64.98 ± 4.82 64.66 ± 5.01 63.79 ± 4.86 <0.001 65.02 ± 4.99 64.81 ± 4.77 64.88 ± 4.83 NS
Female sex (%) 48.52 59.91 48.29 44.08 34.96 <0.001 52.19 42.87 43.18 <0.001
Weight (Kg) 86.59 ± 13 87.06 ± 13.1 87.07 ± 13.29 85.89 ± 12.88 86.1 ± 12.6 0.008 87.32 ± 13.28 86.14 ± 12.85 84.9 ± 12.11 <0.001
BMI (Kg/m2) 32.56 ± 3.45 33.25 ± 3.53 32.63 ± 3.49 32.14 ± 3.32 31.84 ± 3.2 <0.001 33.02 ± 3.55 32.11 ± 3.26 31.67 ± 3.08 <0.001
Smoking status (%) <0.001
Current smoker 12.53 11.97 14 13.67 10.57 14.21 10.72 9.39 <0.001
Former smoker 43.58 37.78 43 44.27 53.05 39.92 48.57 49.49
Never smoker 43.89 50.26 43 42.06 36.38 45.87 40.71 41.12
Adherence to er-MedDiet 8.5 ± 2.67 8.44 ± 2.59 8.54 ± 2.69 8.53 ± 2.69 8.51 ± 2.75 NS 8.25 ± 2.59 8.64 ± 2.67 9.06 ± 2.8 <0.001
Marital status (%) <0.001 0.018
Married 76.51 74.15 76.16 77.87 79.22 75.33 77.1 79.3
Single 5.14 5.64 5.76 4.23 4.68 5.83 4.47 3.77
Divorced 7.93 8.38 7.3 7.3 8.58 8.31 7.71 7.06
Widowed/widower 10.43 11.84 10.78 10.61 7.52 10.54 10.72 9.87
Maximum attained educational level (%) <0.001 NS
Primary school or less 48.59 57.14 48.56 45.19 38.37 49.73 47.88 45.99
Secondary school 29.2 26.92 29.6 30.23 31.35 28.48 30.53 30.02
College or higher 22.21 15.94 21.84 24.59 30.28 21.78 21.59 23.99
Schooling time (years) 11.86 ± 8.51 11.35 ± 10.56 11.87 ± 7.98 11.97 ± 7.16 12.57 ± 6.33 <0.001 11.85 ± 9.2 11.75 ± 8.15 11.98 ± 6.55 NS
Mean sleep hours at working days 6.98 ± 1.22 6.96 ± 1.29 7.02 ± 1.2 6.95 ± 1.2 7.02 ± 1.16 NS 6.96 ± 1.25 6.96 ± 1.17 7.07 ± 1.18 0.014
Mean sleep hours at weekend 7.18 ± 1.28 7.12 ± 1.36 7.22 ± 1.24 7.16 ± 1.26 7.24 ± 1.22 0.028 7.17 ± 1.32 7.14 ± 1.23 7.22 ± 1.21 NS
Labor status (%) <0.001
Active 20.99 15.43 20.76 22.87 28.3 21.54 20.66 19.74 <0.001
Long-term inactive 23.01 28.89 22.57 21.09 15.96 24.75 21.36 19.6
Retired 55.99 55.68 56.66 56.04 55.74 53.72 57.98 60.66
Diabetes at baseline n (%) 1871 (27.22) 738 (31.54) 422 (28.27) 403 (24.71) 308 (21.84) <0.001 1175 (28.53) 344 (26.52) 352 (24.13) 0.004
Depression at baseline n (%) 1428 (20.77) 627 (26.79) 282 (18.89) 278 (17.04) 241 (17.09) <0.001 925 (22.46) 239 (18.43) 264 (18.09) <0.001
Hypertension at baseline n (%) 5750 (83.65) 1994 (85.21) 1253 (83.92) 1360 (83.38) 1143 (81.06) 0.01 3467 (84.19) 1076 (82.96) 1207 (82.73) NS
History of lung disease n (%) 23 (0.33) 7 (0.3) 9 (0.6) 2 (0.12) 5 (0.35) NS 13 (0.32) 6 (0.46) 4 (0.27) NS
History of cancer n (%) 497 (7.23) 185 (7.91) 103 (6.9) 117 (7.17) 92 (6.52) NS 310 (7.53) 90 (6.94) 97 (6.65) NS

Light = light-moderate PA activities but not every week; Moderate = moderate PA activities ≤150 min/week or vigorous PA activities ≤75 min/week; High = >150 min/week of moderate PA activities or >75 min/week of vigorous activities.

NS = non significant.

Q1 = 0–11 repetitions; Q2 = 12–13 repetitions; Q3 = 14–16 repetitions; Q4 = 17–37 repetitions.

Mean ± SD for age, weight, BMI, adherence to er-MedDiet, schooling time and sleep hours.

(%) for sex, smoking status, marital status, educational level, labor status and T2D, depression, hypertension, lung disease and cancer prevalence.

Chair stand test quartiles and PA levels were compared with sex, smoking status, marital status, educational level, labor status and T2D, depression, hypertension, lung disease and cancer prevalence with a χ2 test and with age, weight, BMI, adherence to er-MedDiet, schooling time and sleep hours with ANOVA test.

Significant p values in bold.