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Table 2 Consensus agreement of prognostic factors Delphi-survey

From: Consensus of potential modifiable prognostic factors for persistent pain after a first episode of nonspecific idiopathic, non-traumatic neck pain: results of nominal group and Delphi technique approach

Prognostic factors

Number of participants per factor Round 1

Percentage agreement (yes) Round 1

Number of participants per factor Round 2

Percentage Agreement (yes) Round 2

Social demographic

 Gender

80

56.25%

 Age

80

65%

 Social class

80

56.25%

 Education level

80

66.25%

 Marital status

80

11.24%

Work-related factors

 Employment status

80

53.75%

Happiness in work**

80

86.25%

 Physical work

80

53.75%

Symptoms

 Pain intensity at baseline**

80

65%

87.50%

Duration of the neck pain*

80

72.50%

Disturbed sleep due to neck pain

80

60%

Reported pain in different body regions*

80

78.75%

 High severity of disability

80

51.25%

 High severity of experienced disability**

80

65%

48

91.67%

 Cervical mobility

80

12.50%

 Thoracic mobility

80

10%

 Cervical motor control

80

25%

 Posture

80

13.75%

 Radiating pain below elbow

80

30%

 Accompanying headache

80

36.25%

 Dizziness

80

18.75%

 Pressure sensitivity neck musculature

80

25%

Prior conditions

Neck pain before**

70

92.86%

History of musculoskeletal pain*

70

72.86%

General factors

Physical inactivity**

71

90.14%

Unhealthy lifestyle (smoking, alcohol, eating etc.)*

71

76.06%

Sleep quality*

71

73.24%

Cognition

 Somatization**

74

62.16%

48

89.58%

Catastrophizing**

74

87.84%

 Locus of control

74

59.46%

 Acceptance of illness

74

52.70%

Illness beliefs about recovery**

74

83.78%

Treatment beliefs*

74

70.27%

Emotions

Depression**

72

87.50%

Kinesiophobia**

72

86.11%

Distress*

72

72.22%

 Anger

72

43.06%

 Injustice

72

40.28%

Behavior

Coping**

70

95.71%

Perceptions

Illness beliefs about pain identity**

56

89.29%

Hypervigilance *

56

76.79%

Motivation

Purposeful behavior**

32

90.63%

Vulnerability

 Limited health literacy **

62

62.90%

48

87.50%

 Limited self-regulation

62

50%

Limited self-efficacy**

62

88.71%

Remaining factors

Health care provider attitude (biomedical/biopsychosocial)**

65

90.77%

Therapeutic relation**

65

84.62%

Additional factors round 2

 Orofacial pain

40

65%

 Potential to self-modify posture**

40

82.50%

  1. Factors with an agreement > 70% shown in bold (* > 70% agreement. ** > 80% agreement). Factors shown in italics were found not unambiguous and were asked to clarify in the second-round questionnaire