Table 1 Demographics (including description and coding for person variables). N.B. Means presented are from raw scores, not categorized values. Key: NeP = neuropathic pain, SF = short form, PCS = Physical components summary, MCS = Mental components summary, BPI = Brief Pain Inventory
Person Variable | Coding | N** (%) |
|---|---|---|
Age Sample mean age = 55.4 years Total N = 624 | Under 20 | 1 (0.2) |
20–29 years | 24 (3.8) | |
30–39 years | 43 (6.9) | |
40–49 years | 134 (21.5) | |
50–59 years | 199 (31.9) | |
60–69 years | 122 (19.6) | |
70–79 years | 73 (11.7) | |
80 plus | 28 (4.5) | |
Sex | Male | 347 (55.6) |
Female | 277 (44.4) | |
NeP Diagnosis | Chronic low back pain | 103 (16.5) |
Post-Diabetic peripheral neuralgia | 100 (16.0) | |
HIV related pain | 103 (16,5) | |
Chronic post-surgical pain | 106 (17.0) | |
Small fiber neuropathy | 110 (17.6) | |
Spinal cord injury | 97 (15.5) | |
SF12 PCS Mean PCS = 31 (100 = perfect health) | 0–19 | 61 (10.0) |
20–39 | 446 (73.0) | |
40–59 | 102 (16.7) | |
60–79 | 2 (0.3) | |
80–100 | 0 | |
SF12 MCS Mean MCS = 42.5 (100 = perfect health) | 0–19 | 22 (3.6) |
20–39 | 241 (39.4) | |
40–59 | 288 (47.1) | |
60–79 | 60 (9.8) | |
80–100 | 0 | |
BPI pain severity Mean =5.2 | 0–3 Mild | 111 (18.1) |
4–6 Moderate | 297 (48.4) | |
7–10 Severe | 206 (33.6) | |
BPI pain interference Mean = 5.6 | 0–3 Mild | 163 (26.2) |
4–6 Moderate | 244 (39.2) | |
7–10 Severe | 216 (34.7) |