Table 1: Sample characteristics by sex; Rancho Bernardo, California

Characteristics

Total sample

(n = 468) n (%)

Women

(n = 255) n (%)

Men

(n = 213) n (%)

p-value

Age, [years], mean ± SD

73.7 ± 8.5

73.3 ± 8.8

74.2 ± 8.1

  0.28

Height, [in.], mean ± SD

65.9 ± 3.8

63.3 ± 2.5

69.0 ± 2.8

< 0.01

Weight, [lb.], mean ± SD

165.8 ± 36.5

147.8 ± 30.2

187.2 ± 31.6

< 0.01

BMI, [lb./in2 ], mean ± SD

26.7 ± 4.6

25.9 ± 4.9

27.7 ± 4.1

< 0.01

Marital Status (n = 468)

 

 

 

< 0.01

Married/Living together as if married

364 (77.8)

172 (67.5)

192 (90.1)

 

Widowed/Divorced/Separated

  96 (20.5)

  77 (30.2)

  19 (8.9)

 

Single

8 (1.7)

    6 (2.4)

    2 (0.9)

 

Kyphosis

 

 

 

 

Flexicurve,  mean ± SD

12.4 ± 3.0

12.6 ± 3.2

12.1 ± 2.6

  0.04

PSQI

 

 

 

< 0.01

Good sleep quality

303 (64.7)

151 (59.2)

152 (71.4)

 

Poor sleep quality

165 (35.3)

104 (40.8)

  61 (28.6)

 

General health (n = 468)

 

 

 

  0.87

Excellent/Very good

297 (63.5)

161 (63.1)

136 (63.9)

 

Good/ Fair/Poor

171 (36.5)

  94 (36.9)

  77 (36.1)

 

Smoking status (n = 467)

 

 

 

  0.13

Never

239 (51.2)

140 (55.1)

  99 (46.5)

 

Past

211 (45.2)

104 (40.9)

107 (50.2)

 

Current

  17 (3.6)

  10 (4.0)

    7 (3.3)

 

Alcohol (n = 410)

 

 

 

  0.16

Daily or almost every day

171 (41.7)

  83 (48.1)

  88 (45.8)

 

Three or four times a week

  58 (14.2)

  29 (13.3)

  29 (15.1)

 

Once or twice a week

  58 (14.2)

  34 (15.6)

  24 (12.5)

 

Once or twice a month

  47 (11.4)

  23 (10.5)

  24 (12.5)

 

Less often than once a month

  76 (18.5)

  49 (22.5)

  27 (14.1)

 

Calcium supplement use, % Yes (n = 468)

210 (44.8)

144 (56.5)

  66 (31.0)

< 0.01

Vitamin D current, % Yes (n = 468)

197 (42.1)

114 (56.5)

  53 (24.9)

< 0.01

Estrogen ever, % Yes (n = 251)

195 (77.7)

195 (77.7)

     -

   -

Estrogen current, % Yes (n = 195)

  45 (23.1)

  45 (23.1)

     -

   -

Exercise ≥ three times a week, %Yes (n = 467)

336 (72.0)

174 (68.5)

162 (76.1)

  0.07

Emphysema, %Yes (n = 457)

  14 (3.1)

  11 (4.4)

    3 (1.5)

  0.07

Diabetes, %Yes (n = 468)

  51 (10.9)

  21 (8.2)

  30 (14.1)

  0.04

Arthritis, %Yes (n = 476)

  96 (20.6)

  63 (24.9)

  33 (15.5)

  0.01

Depression, %Yes (n = 467)

  57 (12.2)

  38 (14.9)

  19 (9.0)

  0.05

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  Abbreviations: SD = standard deviation; in. = inches; lb. = pound; PSQI = Pittsburgh Sleep Quality Index; Good sleep quality (PSQI ≤ 5)