1. Background
2. Objectives
3. Methods
3.1. Ethical Considerations
4. Results
| Variables | No. (%) |
|---|---|
| Age (y) | |
| 54 - 60 | 52 (27.1) |
| 61 - 70 | 80 (41.7) |
| > 70 | 60 (31.2) |
| Gender | |
| Male | 183 (95.3) |
| Female | 9 (4.7) |
| Marital status | |
| Married | 177 (92.2) |
| Single/divorced | 15 (7.8) |
| Pain duration (y) | |
| < 20 | 37 (19.3) |
| 20 - 30 | 59 (30.7) |
| > 30 | 96 (50.0) |
| Type of disability | |
| Physical | 133 (69.3) |
| Psychological | 37 (19.3) |
| Combined | 22 (11.4) |
| Questionnaire and Part/Subscale | Number of Questions | Score Range | Mean ± SD |
|---|---|---|---|
| SF-MPQ | |||
| Affective pain | 6 | 6 - 60 | 31.2 ± 8.5 |
| Neuropathic pain | 5 | 5 - 50 | 24.8 ± 7.8 |
| Continuous pain | 6 | 6 - 60 | 26.7 ± 8.2 |
| Intermittent pain | 5 | 5 - 50 | 21.9 ± 6.9 |
| Total scale | 22 | 22 - 220 | 105.3 ± 23.4 |
| WHYMPI | |||
| Part 1: Psychological dimensions of pain (20 questions) | |||
| Interference with daily life | 9 | 0 - 6 | 3.5 ± 1.1 |
| Support from others | 3 | 0 - 6 | 3.0 ± 1.1 |
| Pain severity | 3 | 0 - 6 | 3.9 ± 1.0 |
| Life control | 2 | 0 - 6 | 3.1 ± 1.2 |
| Affective distress | 3 | 0 - 6 | 3.4 ± 1.1 |
| Total mean score of Part 1 | 20 | 0 - 6 | 3.3 ± 1.1 |
| Part 2: Others’ responses (14 questions) | |||
| Negative responses | 4 | 0 - 6 | 2.0 ± 1.0 |
| Solicitousness by others | 6 | 0 - 6 | 2.6 ± 1.1 |
| Distraction by others | 4 | 0 - 6 | 2.3 ± 1.0 |
| Total mean score of part 2 | 14 | 0 - 6 | 2.3 ± 1.0 |
| Part 3: Daily activities (18 questions) | |||
| Household chores | 5 | 0 - 6 | 3.4 ± 1.3 |
| Outdoor activities | 5 | 0 - 6 | 3.0 ± 1.4 |
| Activities away from home | 4 | 0 - 6 | 2.7 ± 1.2 |
| Social activities | 4 | 0 - 6 | 2.3 ± 1.1 |
| Total mean score of part 3 | 18 | 0 - 6 | 2.9 ± 1.2 |
| CSQ | |||
| Diverting attention | 7 | 0 - 42 | 22.5 ± 7.0 |
| Reinterpreting pain sensations | 7 | 0 - 42 | 19.5 ± 6.6 |
| Coping self-statements | 7 | 0 - 42 | 17.8 ± 6.0 |
| Ignoring pain sensations | 7 | 0 - 42 | 14.6 ± 5.8 |
| Catastrophizing | 7 | 0 - 42 | 16.5 ± 6.5 |
| Praying/hoping | 7 | 0 - 42 | 20.3 ± 7.1 |
| Total score of the scale | 42 | 0 - 252 | 111.2 ± 27.8 |
Abbreviations: SF-MPQ, Short-Form McGill Pain Questionnaire; WHYMPI, West Haven-Yale Multidimensional Pain Inventory; CSQ, Coping Strategies Questionnaire.
| Variables and Part/Subscale | R | P-Value |
|---|---|---|
| SF-MPQ | ||
| Affective pain | 0.88 | < 0.001 |
| Neuropathic pain | 0.85 | < 0.001 |
| Continuous pain | 0.90 | < 0.001 |
| Intermittent pain | 0.82 | < 0.001 |
| Total scale | 1 | - |
| WHYMPI | ||
| Interference with daily life | 0.70 | < 0.001 |
| Support from others | -0.30 | 0.004 |
| Pain severity | 0.73 | < 0.001 |
| Life control | -0.25 | 0.012 |
| Affective distress | 0.68 | < 0.001 |
| Total mean score of part 1 | 0.71 | < 0.001 |
| Negative responses | 0.40 | < 0.001 |
| Solicitousness by others | -0.15 | 0.08 |
| Distraction by others | 0.12 | 0.12 |
| Total mean score of part 2 | 0.21 | 0.02 |
| Household chores | -0.42 | < 0.001 |
| Outdoor activities | -0.38 | < 0.001 |
| Activities away from home | -0.33 | < 0.001 |
| Social activities | -0.28 | 0.001 |
| Total mean score of part 3 | -0.37 | < 0.001 |
| CSQ | ||
| Diverting attention | -0.18 | 0.05 |
| Reinterpreting pain sensations | -0.21 | 0.03 |
| Coping self-statements | -0.15 | 0.08 |
| Ignoring pain sensations | -0.10 | 0.18 |
| Catastrophizing | 0.50 | < 0.001 |
| Praying/hoping | -0.05 | 0.60 |
| Total score of the scale | 0.02 | 0.80 |
Abbreviations: SF-MPQ, Short-Form McGill Pain Questionnaire; WHYMPI, West Haven-Yale Multidimensional Pain Inventory; CSQ, Coping Strategies Questionnaire.
| Variables and Part/Subscale | B (Unstandardized Coefficient) | β (Standardized Coefficient) | 95% CI for B | P-Value | R² | Interpretation |
|---|---|---|---|---|---|---|
| WHYMPI-part 1 (psychological dimensions of pain) | ||||||
| Interference with daily life | 0.54 | 0.55 | 0.32 to 0.76 | < 0.001 | 0.29 | Strong positive relationship |
| Support from others | -0.19 | -0.21 | -0.37 to -0.01 | 0.05 | 0.05 | Weak negative relationship |
| Pain severity | 0.62 | 0.58 | 0.41 to 0.83 | < 0.001 | 0.34 | Strongest predictor |
| Life control | -0.28 | -0.27 | -0.47 to -0.09 | 0.01 | 0.09 | Negative association |
| Affective distress | 0.49 | 0.48 | 0.26 to 0.72 | < 0.001 | 0.23 | Positive relationship |
| WHYMPI-part 2 (others’ responses) | ||||||
| Negative responses | 0.36 | 0.31 | 0.12 to 0.60 | 0.004 | 0.08 | Positive association |
| Solicitousness by others | -0.14 | -0.12 | -0.34 to 0.06 | 0.14 | 0.03 | Non-significant |
| Distraction by others | 0.22 | 0.19 | 0.01 to 0.43 | 0.04 | 0.06 | Weak positive relationship |
| WHYMPI-part 3 (daily activities) | ||||||
| Household chores | -0.43 | -0.38 | -0.63 to -0.23 | 0.001 | 0.11 | Pain reduces activities |
| Outdoor activities | -0.38 | -0.34 | -0.57 to -0.19 | 0.003 | 0.09 | Significant negative relationship |
| Activities away from home | -0.34 | -0.29 | -0.54 to -0.14 | 0.007 | 0.07 | Decreased activities |
| Social activities | -0.29 | -0.25 | -0.53 to -0.05 | 0.02 | 0.05 | Reduced social engagement |
| CSQ (coping strategies) | ||||||
| Diverting attention | 0.31 | 0.27 | 0.08 to 0.54 | 0.01 | 0.08 | Increased use with pain |
| Reinterpreting pain sensations | -0.20 | -0.18 | -0.42 to 0.02 | 0.08 | 0.04 | Negative trend, ns |
| Coping self-statements | 0.12 | 0.10 | -0.09 to 0.33 | 0.27 | 0.01 | Non-significant |
| Ignoring pain sensations | -0.08 | -0.07 | -0.26 to 0.10 | 0.39 | 0.005 | Non-significant |
| Catastrophizing | 0.18 | 0.16 | -0.03 to 0.39 | 0.09 | 0.03 | Positive trend |
| Praying/hoping | 0.28 | 0.24 | 0.06 to 0.50 | 0.02 | 0.06 | Positive association |
| Total score of CSQ | 0.33 | 0.30 | 0.08 to 0.58 | 0.009 | 0.09 | Overall positive |
Abbreviations: SF-MPQ, Short-Form McGill Pain Questionnaire; WHYMPI, West Haven-Yale Multidimensional Pain Inventory; CSQ, Coping Strategies Questionnaire; ns, non-significant.
a Dependent variable: SF-MPQ total score; independent variables: Subscales of WHYMPI and CSQ.