Table 1 Background information with between-group differences. Group is determined by the medicine the participants evaluated in the experience questions

MC

Opioid

MC

SD

M

SD

p

BF₁₀

Age (years)

43.00

9.83

47.76

10.79

0.012

3.47^a

Income [1–5]

1.88

1.09

2.13

1.06

0.120

1/3.57

Education [1–7]

2.85

1.44

3.46

1.72

0.055

1/2.13

Pain duration (months)

165.36

105.12

163.58

108.31

0.840

1/5.20

Average pain over the past week (CPQ) [0–10]

5.98

2.21

6.72

1.49

0.110

1/2.17

Interference of pain with activities (CPQ) [0–10]

5.23

2.42

6.04

1.70

0.082

1/1.85

Depression score (DSM5) [0–4]

2.25

1.06

2.47

0.96

0.310

1/4.35

Anxiety score (DSM5) [0–4]

1.65

1.08

1.71

1.11

0.840

1/5.26

Severity of dependence (SDS) [0–15]

2.63

2.63

3.60

2.81

0.020

1/1.92

Gender

%

n

%

n

p

BF₁₀

 Male

70

28

19

30

 < .001

 > 100^b

 Female

28

11

78

126

 < .001

 > 100

 Other

3

1

2

4

1.00

1/2.44

Pain type

%

n

%

n

p

BF₁₀

 Musculoskeletal

53

21

59

95

0.46

1/5.26^b

 Neuropathic

60

24

72

116

0.14

1/2.17

 Cancer-related

3

1

2

4

1.00

1/2.44

 Visceral

30

12

29

47

0.92

1/6.25

 Head

10

4

6

10

0.40

1/6.25

 Other

60

24

63

101

0.75

1/6.67