Table 2:
Demographic Information Among Initial Acute Ischemic Stroke Patients by Sex and Race/Ethnicity
| Variables | NHW men (n=124873) |
NHB men (n=27129) |
Hispanic men (n=8934) |
NHW women (n=122017) |
NHB women (n=27505) |
Hispanic women (n=7473) |
P-value |
|---|---|---|---|---|---|---|---|
| Mean (SE) age, years | 69.50 (0.04) | 62.06 (0.08) | 63.20 (0.15) | 74.62 (0.04) | 66.14 (0.09) | 67.66 (0.19) | <0.0001 |
| Age in groups | |||||||
| 18-44 | 4730 (3.8) | 2296 (8.5) | 825 (9.2) | 4538 (3.7) | 2309 (8.4) | 718 (9.6) | <0.0001 |
| 45-54 | 11927 (9.6) | 5013 (18.5) | 1578 (17.7) | 7214 (5.9) | 3799 (13.8) | 950 (12.7) | |
| 55-64 | 27310 (21.9) | 8580 (31.6) | 2463 (27.6) | 15737 (12.9) | 6440 (23.4) | 1322 (17.7) | |
| 65-74 | 33449 (26.8) | 6620 (24.4) | 2088 (23.4) | 26516 (21.7) | 6449 (23.4) | 1600 (21.4) | |
| 75-84 | 29563 (23.7) | 3364 (12.4) | 1351 (15.1) | 33046 (27.1) | 5084 (18.5) | 1650 (22.1) | |
| 85+ | 17894 (14.3) | 1256 (4.6) | 629 (7.0) | 34966 (28.7) | 3424 (12.4) | 1233 (16.5) | |
| Insurance | |||||||
| Medicaid | 7827 (6.3) | 4670 (17.2) | 2008 (22.5) | 5672 (4.6) | 4265 (15.5) | 1522 (20.4) | <0.0001 |
| Medicare | 76940 (61.6) | 11677 (43.0) | 3631 (40.6) | 89853 (73.6) | 14977 (54.5) | 3802 (50.9) | |
| Private | 34151 (27.3) | 7852 (28.9) | 2335 (26.1) | 22543 (18.5) | 6307 (22.9) | 1614 (21.6) | |
| Self pay/no insurance | 3791 (3.0) | 2607 (9.6) | 764 (8.6) | 1931 (1.6) | 1744 (6.3) | 409 (5.5) | |
| Not documented | 2164 (1.7) | 323 (1.2) | 196 (2.2) | 2018 (1.7) | 212 (0.8) | 126 (1.7) | |
| Arrival by ambulance | 50170 (40.2) | 12388 (45.7) | 3359 (37.6) | 56756 (46.5) | 13077 (47.5) | 3090 (41.3) | <0.0001 |
| Median (IQR) NIHSS score | 3 (1-7) | 3 (1-8) | 3 (1-8) | 3 (1-9) | 4 (1-9) | 4 (1-9) | |
| NIHSS in groups | |||||||
| 0-4 | 74755 (59.9) | 14808 (54.6) | 5105 (57.1) | 65357 (53.6) | 14044 (51.1) | 3963 (53.0) | <0.0001 |
| 5-24 | 38104 (30.5) | 9372 (34.5) | 3016 (33.8) | 42238 (34.6) | 10068 (36.6) | 2684 (35.9) | |
| 25+ | 3200 (2.6) | 734 (2.7) | 282 (3.2) | 4699 (3.9) | 976 (3.5) | 341 (4.6) | |
| Missing | 8814 (7.1) | 2215 (8.2) | 531 (5.9) | 9723 (8.0) | 2417 (8.8) | 485 (6.5) | |
| Reperfusion treatment | 21301 (17.1) | 4277 (15.8) | 1607 (18.0) | 20892 (17.1) | 4255 (15.5) | 1442 (19.3) | <0.0001 |
| Outcomes | |||||||
| Symptomatic ICH after reperfusion treatment | 716 (3.4) | 160 (3.7) | 59 (3.7) | 870 (4.2) | 155 (3.6) | 49 (3.4) | 0.002 |
| Discharge to Home | 68319 (54.7) | 14970 (55.2) | 5224 (58.5) | 56453 (46.3) | 14414 (52.4) | 4247 (56.8) | <0.0001 |
| In-hospital death | 5350 (4.3) | 826 (3.0) | 386 (4.3) | 6089 (5.0) | 941 (3.4) | 317 (4.2) | <0.0001 |
| Comorbidities | |||||||
| Hypertension | 88342 (70.7) | 21329 (78.6) | 6174 (69.1) | 89952 (73.7) | 22933 (83.4) | 5470 (73.2) | <0.0001 |
| Hypercholesterolemia | 62840 (50.3) | 10096 (37.2) | 3465 (38.8) | 59838 (49.0) | 11215 (40.8) | 3169 (42.4) | <0.0001 |
| Diabetes | 38189 (30.6) | 10367 (38.2) | 3822 (42.8) | 32326 (26.5) | 11973 (43.5) | 3352 (44.9) | <0.0001 |
| Current smoker | 26410 (21.1) | 8350 (30.8) | 1461 (16.4) | 18844 (15.4) | 5492 (20.0) | 693 (9.3) | <0.0001 |
| Coronary artery disease | 33459 (26.8) | 4253 (15.7) | 1381 (15.5) | 21483 (17.6) | 3863 (14.0) | 919 (12.3) | <0.0001 |
| Atrial fibrillation | 23947 (19.2) | 2311 (8.5) | 896 (10.0) | 26089 (21.4) | 2659 (9.7) | 986 (13.2) | <0.0001 |
| Heart failure | 11182 (9.0) | 3130 (11.5) | 633 (7.1) | 12325 (10.1) | 3232 (11.8) | 607 (8.1) | <0.0001 |
| Peripheral artery disease | 5913 (4.7) | 859 (3.2) | 203 (2.3) | 4633 (3.8) | 807 (2.9) | 164 (2.2) | <0.0001 |
| Heart valve prosthesis | 2126 (1.7) | 165 (0.6) | 54 (0.6) | 1492 (1.2) | 180 (0.7) | 45 (0.6) | <0.0001 |
Abbreviations: ICH=intracranial hemorrhage; IQR=interquartile range; NHB=Non-Hispanic black; NHW=Non-Hispanic white; NIHSS=National Institutes of Health Stroke Scale; SE=standard error