Questionnaires were administered at baseline and the first postoperative visit. Difference in scores after surgery (squares) and 95% CIs (horizonal bars) were estimated from random-effects models, adjusting for baseline scores, time since surgery, age, weight, marital status, and receipt of hyperthermic intraperitoneal chemotherapy. EORTC QLQ-C30 indicates European Organisation for Research and Treatment of Cancer 30-item Core Quality-of-Life Questionnaire.