These same methods were then applied to investigate the effect of hypertensive disorders of pregnancy on stroke-related complications, including mechanical ventilation, seizure, pneumonia, prolonged hospital stay, and death during hospitalization. We used the 97th percentile (5 or more inpatient days) as our definition of prolonged hospital stay as the categorical outcome variable. Each model for stroke-related complications was also adjusted for length of stay as a continuous predictor variable, except for the models for prolonged length of stay. Analyses of temporary tracheostomy and percutaneous gastrostomy tube were limited to survivors