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Table 1 Characteristics of participants.

From: Sleep quality, the neglected outcome variable in clinical studies focusing on locomotor system; a construct validation study

 

Participants included in analyses

(n = 16'191)

Participants reporting sleep problems

(n = 8297)

Participants reporting pain

(n = 10'610)

Females (n[%])

9256 (58%)

4923 (59%)

6316 (60%)

Age band (n[%])

   

   18 to 34 years

3554 (23%)

1812 (22%)

2194 (21%)

   35 to 44 years

3691 (23%)

1937 (23%)

2393 (23%)

   45 to 54 years

2797 (18%)

1488 (18%)

1901 (18%)

   55 to 64 years

2522 (16%)

1369 (16%)

1782 (17%)

   65 to 74 years

1957 (12%)

969 (12%)

1306 (13%)

   75 to 84 years

1136 (7%)

678 (8%)

718 (7%)

   85 years and above

220 (1%)

94 (1%)

127 (1%)

Body mass index

   

   Less than 25 kg/m2

9728 (62%)

5045 (62%)

6239 (60%)

   25 to 30 kg/m2

4633 (29%)

2323 (29%)

3098 (30%)

   30 kg/m2 and above

1441 (9%)

771 (9%)

1036 (10%)

Highest educational level (n[%])

   

   Compulsory schooling/vocational training

9760 (61%)

4843 (59%)

6364 (60%)

   High school graduation

2141 (13%)

1181 (14%)

1476 (14%)

   Technical college/university degree

4290 (26%)

2273 (27%)

2850 (27%)

Living independently (n[%])

15'140 (93%)

7641 (92%)

9876 (92%)

Rural residence* (n[%])

11'694 (74%)

6089 (73%)

7765 (75%)

Reported sleep problems (n[%])

8297(51%)

8297(100%)

6247 (59%)

Reported reason for sleep problems (n[%])

   

   Because of bodily pain

1271 (8%)

1271 (15%)

1127 (11%)

   Because of other bodily problems

407 (3%)

407 (5%)

340 (3%)

   Because of psychological problems

1572 (10%)

1572 (19%)

1259 (12%)

   Because of other problems

5047 (30%)

5047 (61%)

3521 (33%)

Reported complaint or condition (n[%])

   

   Musculoskeletal

9603 (59%)

5529 (67%)

8583 (80%)

   Visual or hearing

5946 (37%)

3340 (40%)

4296 (40%)

   Cardiovascular

2771 (17%)

1480 (18%)

1946 (18%)

   Nervous system

4346 (27%)

2737 (33%)

3640 (34%)

   Respiratory system and allergies

4051 (25%)

2281 (27%)

2877 (27%)

   Mental

1434 (9%)

1078 (13%)

1151 (11%)

   Gastrointestinal

1886 (12%)

1276 (15%)

1620 (15%)

   Diabetes

472 (3%)

241 (3%)

319 (3%)

   Renal

390 (2%)

237 (3%)

291 (3%)

   Neoplasia

446 (3%)

256 (3%)

328 (3%)

Currently smoking (n[%])

4078 (26%)

2086 (25%)

2702 (26%)

No sleeping problems

8197 (50%)

0 (0%)

4354 (41%)

  1. * Village of less than 10'000 inhabitants