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Table 2 Baseline demographics

From: The association of biomarkers with pain and function in acute and subacute low back pain: a secondary analysis of an RCT

 

All participants

Group 1

Group 2

Group 3

Age

38.7 (14.1)

37.7 (14.7)

36.6 (14.5)

39.7(11.8)

BMI

29.2 (6.9)

29.3 (7.6)

31.3 (6.7)

27.5 (6.2)

Sex

F

n = 55 (61%)

n = 21 (64%)

n = 16 (60%)

n = 18 (60%)

M

n = 35 (39%)

n = 12 (36%)

n = 11 (40%)

n = 12 (40%)

Race

White

n = 56 (63%)

n = 22 (66%)

n = 16 (59%)

n = 18 (60%)

Black

n = 25 (27%)

n = 7 (21%)

n = 8 (30%)

n = 10 (33%)

Asian

n = 3 (3%)

n = 1 (3%)

n = 0 (0%)

n = 2 (6%)

Mixed race

n = 6 (7%)

n = 3 (10%)

n = 3 (11%)

n = 0 (0%)

Smoking status

Never

n = 38 (42%)

n = 13 (39%)

n = 9 (33%)

n = 16 (53%)

Currently

n = 20 (22%)

n = 11 (34%)

n = 5 (19%)

n = 4 (14%)

Past

n = 32 (36%)

n = 9 (27%)

n = 13 (48%)

n = 10 (33%)

Exercise

No (1)

n = 6 (7%)

n = 4 (12%)

n = 0 (0%)

n = 2 (7%)

No (2)

n = 16 (18%)

n = 6 (18%)

n = 5 (18%)

n = 5 (17%)

No (3)

n = 14 (16%)

n = 5 (15%)

n = 5 (18%)

n = 4 (13%)

Yes (4)

n = 18 (20%)

n = 6 (18%)

n = 8 (30%)

n = 4 (13%)

Yes (5)

n = 35 (39%)

n = 11 (33%)

n = 9 (34%)

n = 15 (50%)

Missing

n = 1 (1%)

n = 1 (3.3%)

n = 0 (0%)

n = 0 (0%)

General Health

Poor

n = 0 (0%)

n = 0 (0%)

n = 0 (0%)

n = 0 (0%)

Fair

n = 6 (7%)

n = 2 (6%)

n = 2 (7%)

n = 2 (6%)

Good

n = 40 (44%)

n = 13 (39%)

n = 13 (48%)

n = 14 (47%)

Very good

n = 37 (41%)

n = 17 (48%)

n = 10 (37%)

n = 11 (37%)

Excellent

n = 6 (7%)

n = 1 (3%)

n = 2 (7%)

n = 3 (10%)

Missing

n = 1 (1%)

n = 1 (3%)

n = 0 (0%)

n = 0 (0%)

Pain Score

5.7 (1.4)

5.5 (1.4)

6.1 (1.4)

5.6 (1.4)

ODI

34.3 (9.3)

33.8 (9.6)

35.0 (10.2)

33.9 (8.5)

  1. All participants (n = 90); Group 1 (n = 33) = manual manipulation; Group 2 (n = 27) = mechanical manipulation; Group 3 (n = 30) = medical care
  2. (1)= no intention to in the next 6 months; (2)= intention to in the next 6 months; (3)= intention to in the next 30 days; (4)= have been for LESS than 6 months; (5)= have been for MORE than 6 months
  3. For Age, BMI, Pain score, and ODI, mean and (Standard Deviation) is reported
  4. For Sex, Race, Smoking Status, Exercise and General Health, number of participants (n) and percentage within that category (%) is reported