Table 2: Sample characteristics by sex and PSQI sleep quality; Rancho Bernardo, California

 

Women

Men

Characteristics

Good Sleep Quality

( n = 151)

Poor Sleep Quality

(n = 152)

p-value

Good Sleep Quality

(n = 104)

Poor Sleep Quality

(n = 64)

p-value

Age, [years], mean ± SD

  72.5 ± 9.1

  74.6 ± 8.4

0.06

  74.2 ± 7.9

  74.1 ± 8.7

0.94

Height, [in], mean ± SD

  63.3 ± 2.4

  63.3 ± 2.6

0.91

  68.8 ± 2.7

  69.4 ± 2.9

0.20

Weight, [lb.], mean ± SD

144.2 ± 28.3

153.1 ± 32.1

0.02

186.1 ± 32.9

190.1 ± 27.9

0.37

BMI, [lb./in2 ], mean ± SD

  25.3 ± 4.5

  26.9 ± 5.4

0.01

  27.6 ± 4.2

  27.9 ± 3.9

0.71

Marital Status (n = 468)

 

 

0.22

 

 

1.00

Married/Living together as if married

108 (71.5)

64 (61.5)

 

136 (89.5)

56 (91.8)

 

Widowed/Divorced/Separated

  40 (26.5)

37 (35.6)

 

  14 (9.2)

  5 (8.2)

 

Single

    3 (2.0)

  3 (2.9)

 

    2 (1.3)

  0 (0.0)

 

Kyphosis

 

 

 

 

 

 

Flexicurve,  mean ± SD

12.4 ± 3.3

12.9 ± 3.0

0.25

12.2 ± 2.6

11.9 ± 2.6

0.49

General health (n = 468)

 

 

0.02

 

 

0.01

Excellent/Very good

104 (68.7)

57 (54.8)

 

105 (69.1)

31 (50.8)

 

Good/Fair/Poor

  47 (31.1)

47 (45.2)

 

  47 (30.9)

30 (49.2)

 

Smoking status (n = 467)

 

 

0.03

 

 

0.06

Never

  88 (58.3)

52 (50.5)

 

  77 (50.6)

22 (36.1)

 

Past

  54 (35.8)

50 (48.5)

 

  72 (47.4)

35 (57.4)

 

Current

    9 (6.0)

  1 (1.0)

 

    3 (2.0)

  4 (6.5)

 

Alcohol (n = 410)

 

 

0.73

 

 

0.30

Daily or almost every day

  46 (35.9)

37 (41.2)

 

  67 (49.3)

21 (37.5)

 

Three or four times a week

  18 (14.1)

11 (12.2)

 

  20 (14.7)

  9 (16.1)

 

Once or twice a week

  23 (18.0)

11 (12.2)

 

  18 (13.2)

  6 (10.7)

 

Once or twice a month

  12 (9.4)

11 (12.2)

 

  13 (9.6)

11 (19.6)

 

Less often than once a month

  29 (22.6)

20 (22.2)

 

  18 (13.2)

  9 (16.1)

 

Calcium supplement use, % Yes (n = 468)

  81 (53.6)

63 (60.6)

0.27

  43 (28.3)

23 (37.7)

0.18

Vitamin D current, % Yes           (n = 468)

  81 (53.6)

63 (60.6)

0.27

  33 (21.7)

20 (32.8)

0.09

Estrogen ever, % Yes (n = 251)

116 (77.3)

79 (78.2)

0.87

-

-

 

Estrogen current, % Yes (n = 195)

  26 (22.4)

19 (24.1)

0.79

-

-

 

Exercise ≥ 3 times/week, %Yes   (n = 467)

110 (73.3)

64 (61.5)

0.05

114 (75.0)

48 (78.7)

0.57

Emphysema, %Yes  (n = 457)

    5 (3.4)

  6 (5.8)

0.37

    1 (0.7)

  2 (3.4)

0.19

Diabetes, %Yes  (n = 468)

    9 (6.0)

12 (11.5)

0.11

  22 (14.5)

  8 (13.1)

0.80

Arthritis, %Yes  (n = 476)

  24 (16.0)

39 (37.9)

<0.01

  17 (11.2)

16 (26.2)

<0.01

Depression, %Yes  (n = 467)

  17 (11.3)

21 (20.2)

0.05

  10 (6.6)

  9 (14.7)

0.06

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  Abbreviations: SD = standard deviation; in. = inches; lb. = pound; PSQI = Pittsburgh Sleep Quality Index