The Swedish National Patient Register

• The National Patient Register at the Swedish National Board of Health and Welfare (Socialstyrelsen, in Swedish)

Arthritis

• Validity of ankylosing spondylitis and undifferentiated spondyloarthritis diagnoses in the Swedish National Patient Register

• Validation of the rheumatoid arthritis diagnosis in the Swedish National Patient Register: a cohort study from Stockholm County

Cancer

• Validation of the date of surgery for esophageal cancer in the Swedish patient registry

• Validation of oesophageal cancer surgery data in the Swedish Patient Registry

Cardiovascular disorders

• Agreement between self-reports, proxy-reports and the National Patient Register regarding diagnoses of cardiovascular disorders and diabetes mellitus in a population-based sample of 80-year-olds

• Improving identification of idiopathic intracranial hypertension patients in Swedish patient register

Inflammatory bowel disease

• Validating inflammatory bowel disease (IBD) in the Swedish National Patient Register and the Swedish Quality Register for IBD (SWIBREG)

• Validating surgical procedure codes for inflammatory bowel disease in the Swedish National Patient Register

• The use of ICD codes to identify IBD subtypes and phenotypes of the Montreal classification in the Swedish National Patient Register

• Capturing biologic treatment for IBD in the Swedish Prescribed Drug Register and the Swedish National Patient Register – a validation study

Pregnancy related outcomes

• Reliability of recurrent pregnancy loss diagnosis coding in the Swedish National Patient Register: a validation study

• Validity of information on gynecological operations in the Swedish in-patient registry

Psychiatric disorders

• Validity and Reliability of Social Anxiety Disorder Diagnoses in the Swedish National Patient Register

• Detection of Dementia Cases in Two Swedish Health Registers: A Validation Study

• Validity and reliability of chronic tic disorder and obsessive-compulsive disorder diagnoses in the Swedish National Patient Register

• Validation of the diagnoses of personality disorder and emotionally unstable personality disorder from the Swedish National Patient Register

• Validity of the personality disorder diagnosis in the Swedish National Patient Register

Surgery

• Validation of Obesity Surgery Data in the Swedish National Patient Registry and Scandinavian Obesity Registry (SOReg)

• Validating surgical procedure codes for inflammatory bowel disease in the Swedish National Patient Register

• Validation of the date of surgery for esophageal cancer in the Swedish patient registry

• Validation of oesophageal cancer surgery data in the Swedish Patient Registry

• Validity of information on gynecological operations in the Swedish in-patient registry

Other

• The Swedish Hip Fracture Register and National Patient Register were valuable for research on hip fractures: comparison of two registers

• Completeness in the Swedish Fracture Register and the Swedish National Patient Register: An Assessment of Humeral Fracture Registrations

• Bullous Pemphigoid: Validation of the National Patient Register in Two Counties in Sweden, 2001 to 2012

• Reliability of acute pancreatitis diagnosis coding in a National Patient Register: a validation study in Sweden

• Validation of multiple sclerosis diagnoses in the Swedish National Patient Register

• Validating the diagnosis of multiple sclerosis using Swedish administrative data in Värmland County

• Diagnosis of Open Tibial Fracture Showed High Positive Predictive Value in the Swedish National Patient Register

• Paediatric ischaemic stroke is a valid diagnosis in the Swedish National Patient Register

• Validation of the Swedish National Inpatient Register for the diagnosis of pulmonary embolism in 2005