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Table 1 Characteristics of index AIS hospitalizations

From: Association between medication-related adverse events and non-elective readmission in acute ischemic stroke

Characteristic Index Events n (%)
n = 439,682
Age
 <  40 12,878 (2.9)
 40–49 25,172 (5.7)
 50–59 64,364 (14.6)
 60–69 95,136 (21.6)
 70–79 103,821 (23.6)
 80–89 101,941 (23.2)
 90+ 36,371 (8.3)
Sex
 Female 225,570 (51.3)
 Male 214,111 (48.7)
Primary payera
 Private insurance 75,983 (17.3)
 Medicare 295,655 (67.2)
 Medicaid 39,091 (8.9)
 Self-pay 16,303 (3.7)
 No charge 2308 (0.5)
Median household income
 $66,000+ 88,803 (20.2)
 $51,000 - $65,999 99,932 (22.7)
 $40,000 - $50,999 118,495 (27.0)
 $1 - $39,999 126,668 (28.8)
 Missing 5783 (1.3)
Length of stay
 0–7 days 306,786 (69.8)
 >  7 days 132,896 (30.2)
Discharge disposition
 Routine 174,933 (39.8)
 Transfer: short-term hospital 8551 (1.9)
 Transfer: other type of facility 164,884 (37.5)
 Home health care 86,989 (19.8)
 Against medical advice 3531 (0.8)
 Discharged alive, destination unknown 794 (0.2)
Comorbidities
 0–2 110,756 (25.2)
 3–4 166,434 (37.9)
 5–6 107,199 (24.4)
 7+ 55,292 (12.6)
 Bed size of hospital  
 Small 64,949 (14.8)
 Medium 120,363 (27.4)
 Large 254,370 (57.9)
Control/ownership of hospital
 Government, non-federal (public) 53,708 (12.2)
 Private, not-for-profit (voluntary) 326,024 (74.1)
 Private, investor-owned (proprietary) 59,950 (13.6)
Teaching status of hospital
 Metropolitan teaching 278,770 (63.4)
 Metropolitan non-teaching 118,548 (27.0)
 Non-metropolitan 42,364 (9.6)
  1. aSome categories excluded due to small sample sizes