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Table 6 Baseline characteristics of all patients in the OIOC registry

From: Obesity is associated with more disability at presentation and after treatment in low back pain but not in neck pain: findings from the OIOC registry

  LBP cross-sectional LBP longitudinal NP cross-sectional NP longitudinal
General Characteristics     
 Patients 805 305 256 91
 Age: median (IQR) 52 (39; 63) 52 (41; 62) 50 (38; 59) 51 (39; 62)
 No age reported 55 9 26 2
 Gender female: n (%) 429 (53) 168 (55) 144 (56) 56 (62)
 No gender 52 9 25 2
 BMI: median (IQR) 26.6 (23.1; 30.2) 26.1 (22.8; 29.1) 24.8 (22.4; 28.3) 24.7 (22.5; 28.1)
 No BMI: n (%) 257 (32) 94 (31) 65 (25) 20 (23)
 Married or in a relationship: n (%) 321 (40) 130 (43) 99 (39) 43 (47)
 No relationship: n (%) 397 (49) 150 (49) 122 (48) 42 (46)
 Not reported: n (%) 87 (11) 25 (8) 35 (14) 6 (7)
 Low education (no high school diploma): n (%) 75 (9) 19 (6) 10 (4) 2 (2)
 High school diploma and higher education: n (%) 609 (76) 248 (81) 196 (74) 74 (81)
 No education reported: n (%) 121 (15) 38 (12) 50 (20) 15 (16)
Insurance Type     
 Medicare/Medicaid: n (%) 275 (34) 104 (34) 51 (19) 19 (21)
 No fault: n (%) 5 (0.01) 3 (0.01) 11 (4) 5 (5)
 Workers compensation: n (%) 45 (6) 22 (7) 14 (5) 7 (8)
 Other (private, others): n (%) 425 (53) 166 (54) 155 (61) 58 (64)
 Not reported: n (%) 54 (7) 10 (3) 25 (10) 2 (2)
Occupation     
 White collar worker: n (%) 212 (26) 82 (27) 88 (34) 29 (32)
 Blue collar worker: n (%) 111 (13) 39 (13) 27 (11) 11 (12)
 Not reported: n (%) 109 (13) 32 (11) 40 (16) 9 (10)
Work Status     
 Retired: n (%) 109 (14) 48 (16) 24 (9) 11 (12)
 Not working: n (%) 331 (41) 129 (42) 71 (28) 29 (32)
 Not working because of ill health or pain: n (%) 128 (16) 52 (17) 24 (9) 9 (10)
 Workers compensation case to the main complaint: n (%) 26 (3) 14 (5) 8 (3) 6 (7)
 Working full time/part time 367 (46) 146 (48) 144 (56) 55 (60)
 Limited duty 21 (3) 7 (2) 6 (2) 2 (2)
Self-reported measures     
 Baseline ODI/NDI: median, IQR 30 (18; 46) 28.9 (18; 44) 16 (9; 24) 14.4 (9.5; 21.6)
 End of treatment ODI/NDI: median, IQR 22 (10; 35.6) 11 (4.4; 16.1)
 No end of treatment ODI/NDI 18 3
 Baseline NRS: median, IQR 6 (4; 8) 6 (4; 8) 6 (3; 8) 6 (3; 8)
 No baseline NRS 86 24 30 6
 End of treatment NRS: median, IQR 4 (3; 6) 4 (2; 5)
 No end of treatment NRS 239 68
 Baseline FABQ-W: median, IQR 9 (0; 21) 8 (0; 19) 12 (3; 21) 11 (0; 21)
 No baseline FABQ-W 153 53 46 10
 End of treatment FABQ-W: median, IQR 6 (0; 17) 9 (0; 16.3)
 No end of treatment FABQ-W 82 27
 Baseline FABQ-P: median, IQR 15 (11; 19) 15 (11; 18) 14 (10; 19) 14.5 (9; 19)
 No baseline FABQ-P 64 20 30 3
 End of treatment FABQ-P: median, IQR 12 (6; 17) 11 (7; 15.8)
 No end of treatment FABQ-P 63 21