Geographical and ethnic differences of osteoarthritis-associated hip and knee replacement surgeries in New Zealand: a population-based cross-sectional study

Autor: Chunhuan Lao, Douglas White, Ross Lawrenson, David Lees, Sandeep Patel
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Male
knee replacement surgery
Cross-sectional study
Epidemiology
medicine.medical_treatment
Arthroplasty
Replacement
Hip

Ethnic group
Knee replacement
Osteoarthritis
Osteoarthritis
Hip

0302 clinical medicine
geographical differences
030212 general & internal medicine
Arthroplasty
Replacement
Knee

Original Research
Aged
80 and over

education.field_of_study
General Medicine
Middle Aged
Osteoarthritis
Knee

Female
0305 other medical science
musculoskeletal diseases
Adult
medicine.medical_specialty
Adolescent
Population
Population based
03 medical and health sciences
Young Adult
medicine
Humans
education
age-standardised rate
Aged
Retrospective Studies
hip replacement surgery
030505 public health
business.industry
medicine.disease
osteoarthritis
Standardized mortality ratio
Cross-Sectional Studies
Life expectancy
Physical therapy
ethnic differences
business
New Zealand
Zdroj: BMJ Open
ISSN: 2044-6055
Popis: ObjectivesTo (1) explore the regional and ethnic differences in rates of publicly funded osteoarthritis-associated hip and knee replacement surgeries and (2) investigate the mortality after surgery.DesignPopulation-based, retrospective, cross-sectional study.SettingGeneral population in New Zealand.ParticipantsPatients with osteoarthritis who underwent publicly funded primary hip and knee replacement surgeries in 2005–2017. Patients aged 14–99 years were included.Primary and secondary outcome measuresAge-standardised rate, standardised mortality ratio (SMR) and 30 days, 90 days and 1 year mortality.ResultsWe identified 53 439 primary hip replacements and 50 072 primary knee replacements with a diagnosis of osteoarthritis. The number and age-standardised rates of hip and knee replacements increased over time. Māori had the highest age-standardised rate of hip replacements, followed by European/others and Pacific, and Asian had the lowest rate. Pacific had the highest age-standardised rate of knee replacements, followed by Māori and European/others, and Asian had the lowest rate. The Northern Health Network had the lowest rate of hip surgeries, and the Southern Health Network had the lowest rate of knee surgeries. The SMRs of patients undergoing hip and knee replacements were lower than the general population: 0.92 (95% CI 0.89 to 0.95) for hip and 0.79 (95% CI 0.76 to 0.82) for knee. The SMRs were decreasing over time. The patterns of 30 days, 90 days and 1 year mortality were similar to the SMR.ConclusionsThe numbers of publicly funded osteoarthritis-associated primary hip and knee replacements are steadily increasing. Māori people had the highest age-standardised rate of hip replacements and Pacific people had the highest rate of knee replacements. The Northern Health Network had the lowest rate of hip surgeries, and the Southern Health Network had the lowest rate of knee surgeries. Compared with the general population, patients who had hip and knee replacements have a better life expectancy.
Databáze: OpenAIRE