End Points and Assessments
death, same-sided cSDH, hematomas
RECURRENCE, RECURRENCE, COMPLICATIONS, HEMATOMAS
The primary end point was recurrence in need of reoperation within 6 months after index surgery. Recurrence was defined as reoperation of same-sided cSDH, and in cases of bilateral hematomas, a unilateral recurrence would suffice to be recorded as a recurrence. Secondary end points were proportions of complications leading to hospital admission within 30 days, mortality within 6 months, and quality of life measured by the European Quality of Life, 5 dimensions, 3-level version (EQ-5D-3L) after 6 months. The EQ-5D-3L score at 6 months was presented as a utility index score with results ranging from 1 (perfect health) to −0.62 (health state worse than death).