The U.S. News Best Hospitals analysis reviews hospitals' performance in adult and pediatric clinical specialties, procedures and conditions. Scores are based on several factors, including survival, patient safety, nurse staffing and more. Hospitals are ranked nationally in specialties from cancer to urology and rated in common procedures and conditions, such as heart bypass surgery, hip and knee replacement and COPD. Hospitals are also ranked regionally within states and major metro areas. The Best Hospitals Honor Roll recognizes 21 hospitals with outstanding performance across multiple areas of care. The Best Children's Hospital Honor Roll recognizes 10 hospitals with superior pediatric care.