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Table 1 Characteristics of the study population (n = 1072)a

From: Musculoskeletal pain is associated with restless legs syndrome in young adults

 

Reference group (n = 1040)

RLS-diagnosis group (n = 32)

Total (n = 1072)

p-value (for trend)

Sex

   

0.096

 Female

560 (53.8 %)

22 (68.8 %)

582 (54.3 %)

 

 Male

480 (46.2 %)

10 (31.2 %)

490 (45.7 %)

 

Smoking

167 (16.1 %)

6 (18.8 %)

173 (16.2 %)

0.693

Mean Body Mass Index (kg/m2) (SD)

25.2 (5.5)

25.1 (4.4)

25.2 (5.5)

0.936

Sleep Quality

   

0.105 (0.023)

 Very good

160 (15.7 %)

3 (9.7 %)

163 (15.5 %)

 

 Fairly good

619 (60.6 %)

15 (48.4 %)

634 (60.3 %)

 

 Fairly bad

217 (21.3 %)

11 (35.5 %)

228 (21.7 %)

 

 Very bad

25 (2.4 %)

2 (6.5 %)

27 (2.6 %)

 

Mean DASS-21 scores (SD)

    

 Depression Subscale

6.8 (8.2)

12.0 (11.5)

7.0 (8.4)

0.017

 Anxiety Subscale

4.7 (5.7)

10.0 (8.0)

4.9 (5.8)

0.001

 Stress Subscale

9.0 (8.1)

15.5 (11.0)

9.3 (8.3)

0.002

 Total score

20.5 (19.5)

37.0 (28.3)

21.0 (20.0)

0.003

Any pain

380 (36.5 %)

21 (65.6 %)

401 (37.4 %)

0.001 (0.001)

Duration of pain

   

0.001 (<0.001)

 No pain

660 (63.5 %)

11 (34.4 %)

671 (62.7 %)

 

 Short duration

143 (13.8 %)

5 (15.6 %)

148 (13.8 %)

 

 Long duration

236 (22.7 %)

16 (50.0 %)

252 (23.5 %)

 

Pain intensity last week

   

0.007 (0.001)

 No pain

670 (64.7 %)

11 (35.5 %)

681 (63.8 %)

 

 Mild pain

192 (18.5 %)

9 (29.0 %)

201 (18.8 %)

 

 Moderate pain

118 (11.4 %)

8 (25.8 %)

126 (11.8 %)

 

 Severe pain

56 (5.4 %)

3 (9.7 %)

59 (5.5 %)

 

Pain intensity last 3 months

   

0.016 (0.001)

 No pain

682 (65.8 %)

13 (41.9 %)

695 (65.1 %)

 

 Mild pain

169 (16.3 %)

6 (19.4 %)

175 (16.4 %)

 

 Moderate pain

105 (10.1 %)

6 (19.4 %)

111 (10.4 %)

 

 Severe pain

80 (7.7 %)

6 (19.4 %)

86 (8.1 %)

 

Pain frequency last 3 months

   

0.006 (0.001)

 No pain

683 (65.9 %)

12 (38.7 %)

695 (65.1 %)

 

 Low

164 (15.8 %)

6 (19.4 %)

170 (15.9 %)

 

 Medium

84 (8.1 %)

6 (19.4 %)

90 (8.4 %)

 

 High

105 (10.1 %)

7 (22.6 %)

112 (10.5 %)

 

Number of pain sites

   

0.005 (0.001)

 No pain

660 (63.5 %)

11 (34.4 %)

671 (62.6 %)

 

 One

165 (15.9 %)

8 (25.0 %)

173 (16.1 %)

 

 Two

106 (10.2 %)

5 (15.6 %)

111 (10.4 %)

 

 Three or more

109 (10.5 %)

8 (25.0 %)

117 (10.9 %)

 
  1. aMean values with standard deviation provided for continuous data; numbers with percentages are provided for categorical data. Pearson’s Chi square test and Chi square test for trend were used for comparisons of categorical data, independent samples t-tests for continuous data. Significant p-values are highlighted in bold. DASS-21 Depression-, Anxiety and Stress Scale, RLS restless legs syndrome, SD standard deviation