Table 1 Baseline Characteristics of the patient population with reported weight and height

General Characteristics

 Patients

548

211

191

71

 Age: median (IQR)

49 (37; 61)

51 (38; 61)

46 (37; 56)

47 (38; 59)

 No age reported: n (%)

28 (5)

2 (1)

14 (7)

0 (0)

 Gender female: n (%)

288 (53)

113 (54)

114 (60)

47 (66)

 Missing gender information: n (%)

25 (4)

2 (1)

13 (7)

0 (0)

 BMI: median (IQR)

26.6 (23.1; 30.2)

26 (22.8; 29.1)

24.8 (22.4; 28.3)

24.7 (22.5; 28.1)

 Married or in a relationship: n (%)

229 (42)

90 (43)

81 (47)

34 (48)

 No relationship, divorced: n (%)

275 (50)

110 (52)

90 (47)

34 (48)

 Not reported: n (%)

44 (8)

11 (5)

20 (11)

3 (4)

 Low education (high school): n (%)

126 (23)

45 (21)

28 (15)

13 (18)

 Higher education: n (%)

361 (66)

150 (71)

138 (71)

52 (73)

 No education reported: n (%)

61 (11)

16 (8)

25 (16)

6 (9)

Insurance Type

 Medicare/Medicaid: n (%)

162 (29)

68 (32)

29 (15)

11 (15)

 No fault: n (%)

4 (1)

3 (1)

10 (5)

5 (7)

 Workers compensation: n (%)

33 (6)

14 (7)

11 (6)

6 (8)

 Other (private, others): n (%)

322 (59)

124 (59)

128 (67)

49 (69)

 None: n (%)

1 (0.001)

0 (0)

0 (0)

0 (0)

 Not reported: n (%)

26 (5)

2 (1)

13 (7)

0 (0)

Occupation

 White collar worker: n (%)

159 (29)

62 (29)

71 (37)

24 (34)

 Blue collar worker: n (%)

85 (16)

29 (14)

24 (13)

10 (14)

 Other: n (%)

0 (0)

0 (0)

0 (0)

0 (0)

 Not reported: n (%)

58 (10)

15 (7)

24 (13)

6 (8)

Work Status

 Working full time/part time: n (%)

273 (50)

106 (50)

118 (62)

46 (64)

 Retired: n (%)

55 (10)

24 (4)

12 (6)

6 (8)

 Mainly not working during the last 12 months: n (%)

373 (68)

152 (28)

57 (30)

22 (31)

 Currently not working: n (%)

231 (42)

89 (42)

103 (54)

37 (52)

 Not working because of ill health or pain: n (%)

95 (17)

40 (19)

20 (10)

7 (10

Not working because of main complaint

 Job-related injury: n (%)

28 (5)

13 (6)

10 (5)

1 (1)

 Workers compensation case to the main complaint: n (%)

22 (4)

11 (5)

7 (4)

6 (8)

 Limited duty: n (%)

18 (3)

7 (3)

4 (2)

1 (1)

Pain-related

 Acute: to 6 weeks: n (%)

39 (8)

17 (8)

17 (9)

4 (6)

 Subacute: 6 to 12 weeks: n (%)

79 (14)

34 (16)

30 (16)

17 (24)

 Chronic: more than 12 weeks: n (%)

363 (66)

137 (65)

119 (62)

46 (65)

 No pain duration reported: n (%)

67 (12)

23 (11)

25 (13)

4 (6)

 Sciatica/neck and arm pain: n (%)

44 (8)

27 (13)

4 (2)

0 (0)

 Time under therapy: median (IQR) days

44 (32; 67)

46 (35; 63)

Self-reported measures

 Baseline ODI/NDI: median, IQR

30 (18; 47)

28 (18; 45)

15 (9; 22)

13.3 (10; 20)

 End of treatment ODI/NDI: median, IQR

–

20 (10; 36)

–

10 (5; 15)

 No end of treatment ODI/NDI

–

13

–

2

 Baseline NRS: median, IQR

6 (4; 8)

7 (4; 8)

6 (4; 7)

6 (3; 7)

 No baseline NRS

50

17

21

3

 End of treatment NRS: median, IQR

–

4.5 (3; 7)

–

4 (2; 5)

 No end of treatment NRS

–

165

–

50

 Baseline FABQ-W: median, IQR

9 (0; 21)

7 (0; 18)

11 (3; 21)

13 (1; 22)-

 High FABQ-W (>25): n (%)

80 (15)

27 (13)

30 (16)

15 (21)

 No baseline FABQ-W

57 (10)

26 (12)

24 (13)

3 (4)

 End of treatment FABQ-W: median, IQR

–

6 (0; 17)

–

10 (0; 16)

 No end of treatment FABQ-W

–

–

–

 Baseline FABQ-P: median, IQR

15 (12; 19)

15 (11; 18)

15 (11; 19)

15 (9; 19)

 High FABQ-P (>15): n (%)

231 (42)

92 (44)

75 (39)

18 (25)

 No baseline FABQ-P

40

12

20 (10)

2 (2.8)

 End of treatment FABQ-P: median, IQR

–

12 (6.75, 16.3)

–

11 (3; 21)

 No end of treatment FABQ-P

–

43

–

15 (4.7)