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Table 1 Characteristics of the study sample

From: Associations between sedentary behaviour patterns and depression among people aged 60 and older in Hebei Province of China

  Non-depression Depression p value a
n = 2540 n = 139
Age (years)
  ≤ 65 763 (30.0) 34 (24.5) 0.030*
 65–70 639 (25.2) 25 (18.0)
 70–75 646 (25.4) 44 (31.7)  
  > 75 492 (19.4) 36 (25.8)  
Sex
 Men 1096 (43.1) 50 (36.0) 0.115
 Women 1444 (56.9) 89 (64.0)
Smoke
 Current/Previous 127 (16.2) 11 (8.0) 0.014*
 Never 2125 (83.8) 411 (92.0)
Drink (2017)    
No 2135 (84.3) 123 (89.1) 0.158
Yes 398 (15.7) 15 (10.9)
Education
 Primary and below 1628 (64.3) 92 (68.1) 0.416
 Secondary and above 903 (35.7) 43 (31.9)
Employment
 Yes 131 (8.7) 8 (5.8) 0.299
 No 2320 (91.3) 220 (94.2)
Chronic diseases b
 0 1466 (58.0) 74 (55.7)  
 1 860 (34.0) 45 (33.8) 0.570
 2 202 (8.0) 14 (10.5)  
Domestic work (MET-h/d) 3.9 ± 3.7 3.1 ± 3.5 0.021*
Physical exercise (MET-h/d) 2.2 ± 3.7 1.7 ± 3.3 0.017*
Passive SBs (h/d)
  = 0 450 (17.7) 37 (26.6) < 0.001*
  > 0–≤ 1 654 (25.7) 23 (16.5)
 1–2 842 (33.1) 27 (19.4)
 2–3 330 (13.0) 26 (18.7)
  > 3 264 (10.4) 26 (18.7)
Mentally active SBs (h/d)
  = 0 1944 (76.5) 116 (83.5) 0.010*
  > 0–≤1 236 (9.3) 15 (10.8)
  > 1 360 (14.2) 8 (5.7)
Sleep duration (h/d)
  ≤ 6 744 (29.3) 52 (37.4) 0.088
 6–9 1594 (62.8) 80 (57.6)
  ≥ 9 200 (7.9) 7 (5.0)
BMI (kg/m2)
  < 24 929 (39.9) 68 (51.9) 0.008*
  ≥ 24 1400 (60.1) 63 (48.1)
  1. BMI, body mass index
  2. Covariates were missing for BMI (n = 200), education (n = 13), smoke (n = 5), drink (n = 8), chronic diseases (n = 16), domestic work (n = 144), physical exercise (n = 14), sleep (n = 2)
  3. aValues are means ± SDs or n (%). The difference in sample characteristics was tested by Chi-squared tests and t-tests or Wilcoxon rank test for categorical and continuous variables respectively
  4. bChronic diseases included hypertension, diabetes, myocardial infarction, and stroke, each of which was assigned a score of 1
  5. *p <  0.05