Table 1.
Characteristics of Study Group
| Characteristics | Unexposed (n=14,330) |
Psoriasis (n=3,603) |
P-value^ |
|---|---|---|---|
| Male | 5,783 (40.4%) | 1,750 (48.6%) | p<0.01 |
| Age, y* Mean±SD‡ |
49.7±19.3 |
52.2±16.7 |
p<0.01 |
| Diabetes mellitus | 737(5.1%) | 270 (7.5%) | p<0.01 |
| History of myocardial infarction | 375 (2.6%) | 116(3.2%) | p=0.05 |
| History of stroke | 268(1.9%) | 89 (2.5%) | p=0.02 |
| History of TIA | 243 (1.7%) | 68(1.9%) | p=0.43 |
| Hyperlipidemia | 842 (5.9%) | 250 (6.9%) | p=0.02 |
| Hypertension | 3,049(21.3%) | 858(23.8%) | P<0.01 |
| Smoking | |||
| None | 10,465 (73.0%) | 2,488(69.1%) | p<0.01 |
| Current | 755 (5.3%) | 241 (6.7%) | |
| Former | 3,110(21.7%) | 874 (24.3%) | |
| BMI† | |||
| <25 | 5,057(51.2%) | 1,025(42.1%) |
p<0.01 |
| ≥25 & <30 | 3,291 (33.3%) | 860 (35.4%) | |
| ≥30 | 1,522(15.4%) | 548 (22.5%) | |
| Reason for end of study | |||
| Death | 790 (5.5%) | 297 (8.2%) | p<0.01 |
| End of UTS | 11,247(78.5%) | 2,860 (79.4%) | |
| Transfer out | 2,293 (16.0%) | 446 (12.4%) | |
^
Derived using t-test except where * denotes use of Wilcoxon test.
†
Data for BMI were available for 69% of the patients.
‡
Abbreviations: BMI, body mass index (calculated as weight in kilograms divided by height in meters squared); IQR, interquartile range; SD, standard deviation; TIA, transient ischemic attack; UTS, up to standard.
§
Unless notes otherwise, p-values are derived using Fisher’s exact test.