['Preoperative chemotherapy (C+S) for non-small cell lung cancer (NSCLC) has increased in an attempt to improve survival. Patients receiving C+S potentially may have an increase in postoperative morbidity and mortality compared with surgery alone (S). We reviewed our experience with C+S and S in a tertiary referral center.', 'Three hundred eighty consecutive patients underwent lobectomy or greater resection for NSCLC between August 1, 1996, and April 30, 1999: 335 patients (259 S; 76 C+S) were analyzed; 45 additional patients were excluded for prior NSCLC, other chemotherapy for other malignancy, or radiation. We compared morbidity and mortality overall, and by subset analysis (clinical stage, pathological stage, procedure, and by protocol use) for both C+S and S patients.', 'Demographics, comorbidities, and spirometry were similar. We noted no significant difference in overall or subset mortality or morbidity including pneumonia, acute respiratory distress syndrome, reintubation, tracheostomy, wound complications, or length of hospitalization.'] Does preoperative chemotherapy for lung cancer increase surgical morbidity?