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Table 1 Participant Baseline Characteristics by Treatment Group

From: Patient-centered professional practice models for managing low back pain in older adults: a pilot randomized controlled trial

Characteristic

Shared Care, n = 44

Dual Care, n = 44

Medical Care, n = 43

Age, years, mean ± SD

73.2 ± 6.2

72.3 ± 6.0

72.7 ± 6.4

Gender, male, n (%)

28 (64)

28 (64)

24 (56)

Race, white, n (%)

40 (91)

43 (98)

40 (93)

Employment, current, n (%)

4 (9)

11 (25)

11 (26)

Body mass index, mean ± SD

31.9 ± 5.7

31.8 ± 7.3

31.7 ± 7.0

Timed Up & Go, seconds, mean ± SDa

12.3 ± 5.3

11.1 ± 2.6

11.6 ± 3.8

RAND-36, mean ± SD (range 0–100)b

 Physical function

50.0 ± 26.9

57.8 ± 23.6

65.0 ± 23.3

 Emotional well-being

78.5 ± 13.1

80.4 ± 14.0

77.8 ± 13.3

Patient Health Questionnaire, n (%)

 None-to-minimal depression

27 (62)

32 (73)

31 (72)

 Mild-to-moderate depression

15 (34)

11 (25)

12 (28)

Generalized Anxiety Disorder, n (%)

 None-to-minimal anxiety

37 (84)

38 (86)

34 (79)

 Mild-to-moderate anxiety

7 (16)

6 (13)

9 (21)

LBP onset, ≥1 year, n (%)

40 (91)

37 (84)

33 (77)

LBP days per week, median ± IQR

7.0 ± 6.0

7.0 ± 5.0

7.0 ± 7.0

LBP medication use, past week, n (%)

 0 days of medication use

15 (34)

16 (36)

16 (37)

 1–6 days of medication use

14 (32)

17 (38)

17 (40)

 7 days of medication use

15 (34)

11 (25)

10 (23)

Types of LBP medication, n (%)

 Opioids or narcotics

4 (9)

4 (9)

5 (12)

 Over-the-counter medicine

23 (52)

16 (36)

17 (40)

 Non-steroidal anti-inflammatories

17 (39)

24 (55)

19 (44)

 Sedatives or muscle relaxants

7 (16)

5 (11)

5 (12)

Days cut down on activity in past 4 weeks due to LBP, median ± IQR

2 (0–10.0)

4 (0–8.5)

5 (0–20.0)

Bothersomeness mean ± SD (range 1–5)a

3.5 ± 0.8

3.4 ± 0.8

3.3 ± 0.8

Fear avoidance beliefs, work or daily activity, mean ± SD (range 0–42)a

14.7 ± 8.7

13.0 ± 10.0

10.4 ± 8.4

Fear avoidance beliefs, physical activity, mean ± SD (range 0–24)a

12.8 ± 6.0

11.8 ± 6.2

12.0 ± 5.0

Numerical rating scale, average LBP in past week, mean ± SD (range 0–10)a

5.3 ± 1.9

6.0 ± 1.9

6.1 ± 1.9

Numerical rating scale, worst LBP in past week, mean ± SD (range 0–10)a

7.3 ± 1.5

7.4 ± 1.8

7.5 ± 1.5

Roland Morris Disability Questionnaire, mean ± SD (range 0–24)a

9.0 ± 5.2

7.1 ± 4.4

6.3 ± 4.9

  1. aLower score indicates better functioning
  2. bHigher score indicates better functioning
  3. IQR Interquartile range, LBP Low back pain, SD standard deviation