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Table 1 Baseline distribution of sociodemographic, clinical, and lifestyle characteristics by presence and severity of sleep disturbances

From: Sleep disturbances and the speed of multimorbidity development in old age: results from a longitudinal population-based study

 

No disturbances, n = 955

Mild disturbances¥, n = 175

Moderate–severe disturbances§, n = 59

p value*

Age, mean (SD)

67.6 (7.8)

67.9 (8.3)

65.9 (8.1)

0.504

Sex, % (n)

   

0.032

 Female

56.3 (538)

64.0 (112)

69.5 (41)

 

 Male

43.7 (417)

36.0 (63)

30.5 (18)

 

Education, % (n)

   

0.332

 Elementary

10.4 (99)

8.0 (14)

17.0 (10)

 

 High school

46.1 (439)

44.6 (78)

39.0 (23)

 

 University

43.5 (414)

47.4 (83)

44.0 (26)

 

Physical activity, % (n)

   

0.001

 Inadequate

18.2 (174)

16.0 (28)

33.9 (20)

 

 Health-enhancing

50.3 (480)

57.7 (101)

54.2 (32)

 

 Fitness-enhancing

31.5 (301)

26.3 (46)

11.9 (7)

 

Smoking, % (n)

   

0.214

 Never

43.3 (410)

43.7 (76)

42.4 (25)

 

 Former

37.7 (358)

43.1 (75)

45.8 (27)

 

 Current

19.0 (180)

13.2 (23)

11.8 (7)

 

Alcohol, % (n)

   

0.097

 Never

20.6 (195)

20.6 (36)

33.8 (20)

 

 Light–moderate

61.8 (589)

57.7 (101)

49.2 (29)

 

 Heavy

17.6 (169)

21.6 (38)

17.0 (10)

 

BMI, % (n)

   

0.380

 Underweight

1.0 (9)

0.0 (0)

1.7 (1)

 

 Normal weight

45.3 (426)

47.7 (83)

39.0 (23)

 

 Overweight

42.3 (398)

37.3 (65)

42.3 (25)

 

 Obesity

11.4 (107)

15.0 (26)

17.0 (10)

 

Psychotropic drugsa, % (n)

7.1 (68)

22.3 (39)

25.4 (15)

< 0.001

Depressionb, % (n)

1.1 (10)

5.8 (10)

14.3 (8)

< 0.001

Painc, % (n)

22.8 (217)

34.5 (60)

47.5 (28)

< 0.001

  1. *Obtained through the chi-squared test or the Kruskal–Wallis test, as appropriate
  2. aPsychotropic drugs include anxiolytics, hypnotics, sedatives, antipsychotics, and antidepressants
  3. bDepression defined according to the Montgomery–Åsberg Depression Rating Scale (MADRS); scores > 9 indicate depression
  4. cSelf-reported presence of any pain in the last month
  5. ¥Categories 1–2 “Slight difficulty dropping off to sleep or slightly reduced, light or fitful sleep” of the CPRS question on sleeping problems
  6. §Categories 3–4 “Sleep reduced or broken by at least two hours” and 5–6 “Less than two or three hours of sleep” of the CPRS question on sleeping problems