Baseline characteristics of ischemic stroke hospitalizations with and without psoriasis
| Baseline characteristics | Ischemic stroke (n=525,570) | ||
| Without psoriasis (n=523,145) | With psoriasis (n=2425) | P value | |
| Mean age (y) | 70.3 | 69.1 | 0.030 |
| Female | 50.2% | 55.5% | 0.0188 |
| Race | <0.0001 | ||
| White | 70.2% | 84.7% | Reference |
| Black | 16.0% | 3.9% | <0.0001 |
| Hispanic | 7.6% | 5.6% | 0.014 |
| Asians | 2.9% | 2.4% | 0.189 |
| Native Americans | 0.5% | 1.1% | 0.205 |
| Others | 2.7% | 2.3% | 0.285 |
| Charlson Comorbidity Index | 0.1676 | ||
| 1 | 14.0% | 12.4% | |
| 2 | 13.1% | 10.9% | |
| ≥3 | 72.9% | 76.7% | |
| Hospital bed size | 0.3492 | ||
| Small | 13.6% | 15.9% | |
| Medium | 27.1% | 26.8% | |
| Large | 59.3% | 57.3% | |
| Hospital teaching status | 0.1380 | ||
| Non-teaching | 26.4% | 29.5% | |
| Teaching | 73.6% | 70.5% | |
| Hospital location | 0.7794 | ||
| Rural | 5.9% | 6.2% | |
| Urban | 94.1% | 93.8% | |
| Expected primary payer | 0.0024 | ||
| Medicare | 67.2% | 67.5% | |
| Medicaid | 9.2% | 7.2% | |
| Private | 19.8% | 24.0% | |
| Self-pay | 3.8% | 1.3% | |
| Median household income (quartile) | 0.0160 | ||
| 1st (0th–25th) | 30.0% | 23.9% | |
| 2nd (26th–50th) | 26.0% | 26.2% | |
| 3rd (51st–75th) | 24.2% | 26.4% | |
| 4th (76th–100th) | 19.8% | 23.6% | |
| Hospital region | 0.0059 | ||
| Northeast | 19.1% | 22.9% | |
| Midwest | 21.4% | 25.4% | |
| South | 41.0% | 33.6% | |
| West | 18.5% | 18.1% | |
| Dyslipidemia | 59.5% | 67.0% | 0.0009 |
| Old MI | 7.6% | 9.7% | 0.0976 |
| Old PCI | 0.73% | 1.2% | 0.1938 |
| Old CABG | 7.0% | 7.8% | 0.4432 |
| Old pacemaker | 3.5% | 1.9% | 0.0541 |
| Atrial fibrillation/flutter | 30.8% | 27.6% | 0.1371 |
| COPD | 12.1% | 16.5% | 0.0029 |
| Carotid artery disease | 11.9% | 14.0% | 0.1418 |
| Old stroke | 8.6% | 8.5% | 0.9202 |
| Hypertension | 60.7% | 63.7% | 0.1772 |
| Peripheral vessel disease | 5.1% | 7.4% | 0.0189 |
| Hypothyroidism | 13.7% | 14.6% | 0.5521 |
| DM types 1 and 2 | 36.5% | 39.0% | 0.2688 |
| Obesity | 12.3% | 18.8% | <0.0001 |
| CHF | 17.2% | 14.6% | 0.1305 |
| CKD | 17.3% | 17.9% | 0.7170 |
| Liver disease | 1.5% | 3.7% | 0.0002 |
| Electrolyte derangement | 20.4% | 18.4% | 0.2756 |
| Maintenance hemodialysis | 1.2% | 1.0% | 0.7650 |
| O2 dependence | 1.2% | 2.5% | 0.0111 |
| Smoking | 23.0% | 29.5% | 0.0006 |
| Anemia | 14.7% | 15.7% | 0.5356 |
Median household income refers to median household income for patient’s zip code.
CABG, coronary artery bypass graft; CHF, chronic congestive heart failure; CKD, chronic kidney disease; COPD, chronic obstructive pulmonary disease; DM, diabetes mellitus; MI, myocardial infarction; O2, oxygen; PCI, percutaneous coronary intervention.