Edith K Bennett1, Katrina Poppe2, Jamie-Lee Rahiri3, Andrew D MacCormick4, Tim Tenbensel5, Vanessa Selak6. 1. Northland District Health Board, Whangarei, New Zealand. 2. Department of Epidemiology and Biostatistics, University of Auckland, Auckland, New Zealand. 3. Department of Surgery, Waitematā District Health Board, North Shore Hospital, Auckland, New Zealand. 4. Department of Surgery, South Auckland Clinical Campus, University of Auckland, Auckland, New Zealand. 5. Health Systems, School of Population Health University of Auckland, Auckland, New Zealand. 6. Department of Epidemiology and Biostatistics, University of Auckland, Auckland, New Zealand. Electronic address: v.selak@auckland.ac.nz.
Abstract
BACKGROUND: New Zealand health services are responsible for equitable health service delivery, particularly for Māori, the Indigenous peoples of New Zealand. Recent research has indicated the presence of inequities in publicly funded bariatric surgery in New Zealand by ethnicity, but it is unclear whether these inequities persist after adjustment for co-morbidities. OBJECTIVES: To determine whether receipt of publicly funded bariatric surgery varies by ethnicity, after adjustment for co-morbidities. SETTING: New Zealand primary care. METHODS: A cohort study of New Zealanders aged 30-79 years who had cardiovascular risk assessment in primary care between January 1, 2010 and June 30, 2018. Data were collated and analyzed using an encrypted unique identifier with regional and national datasets. Cox proportional hazard modeling was performed to determine the likelihood of receipt of a primary publicly funded bariatric procedure up to December 31, 2018, after adjustment for sex, age, ethnicity, locality, socioeconomic deprivation, body mass index, diabetes status, smoking status, and co-morbidities. RESULTS: A total of 328,739 participants (44% female, median age 54 yr [interquartile range, IQR, 46-62], 54% European, 13% Māori, 13% Pacific, 20% Asian) were included in the study and followed up for a median of 5.6 years (IQR 4.1-6.9). The likelihood of receipt of bariatric surgery was lower for Māori and Pacific compared with Europeans (adjusted hazard ratio .82 [95% CI .69-.96] and .24 [.20-.29], respectively). The likelihood of receiving bariatric surgery was also inversely related with increasing socioeconomic deprivation and rurality. CONCLUSIONS: Consistent with data worldwide, there is evidence of unequal access to publicly funded bariatric surgery by ethnicity, locality as well as socioeconomic deprivation among New Zealanders who were cardiovascular risk assessed in primary care.
BACKGROUND: New Zealand health services are responsible for equitable health service delivery, particularly for Māori, the Indigenous peoples of New Zealand. Recent research has indicated the presence of inequities in publicly funded bariatric surgery in New Zealand by ethnicity, but it is unclear whether these inequities persist after adjustment for co-morbidities. OBJECTIVES: To determine whether receipt of publicly funded bariatric surgery varies by ethnicity, after adjustment for co-morbidities. SETTING: New Zealand primary care. METHODS: A cohort study of New Zealanders aged 30-79 years who had cardiovascular risk assessment in primary care between January 1, 2010 and June 30, 2018. Data were collated and analyzed using an encrypted unique identifier with regional and national datasets. Cox proportional hazard modeling was performed to determine the likelihood of receipt of a primary publicly funded bariatric procedure up to December 31, 2018, after adjustment for sex, age, ethnicity, locality, socioeconomic deprivation, body mass index, diabetes status, smoking status, and co-morbidities. RESULTS: A total of 328,739 participants (44% female, median age 54 yr [interquartile range, IQR, 46-62], 54% European, 13% Māori, 13% Pacific, 20% Asian) were included in the study and followed up for a median of 5.6 years (IQR 4.1-6.9). The likelihood of receipt of bariatric surgery was lower for Māori and Pacific compared with Europeans (adjusted hazard ratio .82 [95% CI .69-.96] and .24 [.20-.29], respectively). The likelihood of receiving bariatric surgery was also inversely related with increasing socioeconomic deprivation and rurality. CONCLUSIONS: Consistent with data worldwide, there is evidence of unequal access to publicly funded bariatric surgery by ethnicity, locality as well as socioeconomic deprivation among New Zealanders who were cardiovascular risk assessed in primary care.