GSTM1 and Hypertension: Data included demographics, comorbidities (hypertension, diabetes, smoking, alcohol), clinical features (hemiplegia, speech disorders), admission blood pressure, biochemical markers (hemoglobin (Hb), random blood sugar (RBS)), hematoma characteristics (volume/location via imaging), and severity scores (Glasgow Coma Scale (GCS), ICH, National Institutes of Health Stroke Scale (NIHSS)).