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Table 2 Characteristics of the validation cohort

From: Validity of a stroke severity index for administrative claims data research: a retrospective cohort study

Characteristics n = 3630
Age, mean (SD) 67.6 (12.7)
Female 1474 (40.6)
LOS, median (IQR) 5 (4–9)
Modified CCI
 0 or 1 2512 (69.2)
  ≥ 2 1118 (30.8)
Vascular risk factors
 Hypertension 2729 (75.2)
 Diabetes mellitus 1658 (45.7)
 Hyperlipidemia 1445 (39.8)
 Prior stroke 689 (19.0)
 Atrial fibrillation 360 (9.9)
 Coronary heart disease 198 (5.5)
 Chronic kidney disease 103 (2.8)
Stroke severity
 NIHSS, mean (SD) 7.1 (7.8)
 SSI, mean (SD) 6.8 (4.8)
Components of SSI
 Airway suctioning 542 (14.9)
 Bacterial sensitivity test 553 (15.2)
 General ward stay 3602 (99.2)
 ICU stay 387 (10.7)
 Nasogastric intubation 802 (22.1)
 Osmotherapy (mannitol or glycerol) 192 (5.3)
 Urinary catheterization 742 (20.4)
  1. Data are numbers (percentage) unless specified otherwise
  2. CCI Charlson comorbidity index, ICU intensive care unit, IQR interquartile range, LOS length of stay, NIHSS National Institutes of Health Stroke Scale, SD standard deviation, SSI stroke severity index