Table 1

Sample characteristics of patients aged 18–64 years with a primary diagnosis of acute ischaemic stroke by intravenous tissue plasminogen activator (IV tPA) therapy status (%), 2010–2013 MarketScan Commercial Claim Inpatient Database

tPA status
 Total (N=39 149)Non-tPA group (N=36 603)IV tPA group (N=2546)p Value
Age, years
 18–4412.712.614.7<0.01
 45–5428.628.728.40.81
 55–6458.658.756.80.06
 Average (years)54.354.353.8<0.01
Gender
 Female41.641.641.60.99
 Male58.458.458.40.99
Metropolitan statistical area
 No18.018.412.5<0.01
 Yes82.081.687.5<0.01
Region
 West12.412.214.4<0.01
 Northeast17.317.416.70.35
 North central27.527.528.00.57
 South42.843.041.00.05
Charlson comorbidity index
 0–233.833.734.60.39
 3–444.744.449.2<0.01
 5 or higher21.521.916.2<0.01
 Average (index)3.253.263.14<0.01
Length of stay, days
 <216.617.27.5<0.01
 2–455.455.456.30.36
 ≥528.027.436.2<0.01
 Average (days)4.14.14.6<0.01
Discharge destination
 Home74.975.567.2<0.01
 Rehabilitation facility14.013.521.1<0.01
 Short-term hospital/SNF/other*9.09.08.40.29
 Expired2.12.03.3<0.01
  • *SNF stands for skilled-nursing facility. Other discharge status includes transferring to a federal hospital, critical access hospital, hospice, long-term care facility, and all other discharge status.