Table 1. Association of demographic and depression phenotypes with constant-severe pain.
Percentages shown next to the counts are column percentages within each variable.
| Variable | Level | Not Constant-severe Pain (n=570) | Constant-severe Pain (n=787) | Total (n=1357) | p-value |
|---|---|---|---|---|---|
| Age 1 | Mean (sd) | 51.7 (16.3) | 46.5 (15.4) | 48.7 (16.0) | *** |
|
| |||||
| Sex | Male | 281 (49.3%) | 407 (51.7%) | 688 (50.7%) | |
| Female | 289 (50.7%) | 380 (48.3%) | 669 (49.3%) | ||
|
| |||||
| Alcohol | Never | 118 (20.9%) | 171 (21.8%) | 289 (21.4%) | |
| Ever | 447 (79.1%) | 615 (78.2%) | 1062 (78.6%) | ||
| Missing | 5 | 1 | 6 | ||
|
| |||||
| Smoking | Never | 220 (38.8%) | 237 (30.3%) | 457 (33.9%) | |
| Ever | 347 (61.2%) | 546 (69.7%) | 893 (66.1%) | ** | |
| Missing | 3 | 4 | 7 | ||
|
| |||||
| Antidepressant Use | No | 300 (75.2%) | 287 (69.8%) | 587 (72.5%) | |
| Yes | 99 (24.8%) | 124 (30.2%) | 223 (27.5%) | ||
| Missing | 171 | 376 | 547 | ||
|
| |||||
| “Felt Blue” | No | 281 (86.5%) | 312 (76.3%) | 593 (80.8%) | |
| Yes | 44 (13.5%) | 97 (23.7%) | 141 (19.2%) | *** | |
| Missing | 245 | 378 | 623 | ||
|
| |||||
| EPI | No | 335 (71.9%) | 501 (69.6%) | 836 (70.5%) | |
| Yes | 131 (28.1%) | 219 (30.4%) | 350 (29.5%) | ||
| Missing | 104 | 67 | 171 | ||
|
| |||||
| Diabetes | No | 354 (72.7%) | 568 (74.6%) | 922 (73.9%) | |
| Yes | 133 (27.3%) | 193 (25.4%) | 326 (26.1%) | ||
| Missing | 83 | 26 | 109 | ||
|
| |||||
| Mental QOL | Mean (sd) | 46.8 (11) | 41.8 (12) | 43.7 (11.9) | *** |
| Missing | 96 | 35 | 131 | ||
Stars indicate level of significance within each variable and with pain severity
*
p<0.05,
**
p<0.01,
***
p<0.001.
Footnote: 1. Age of ascertainment.