Zealand Health Survey Research Articles

Diagnostic Evaluation of Depression Screening Tools in Asian New Zealanders.

This study aimed to compare the Kessler Psychological Distress Scale (K10) and Short-Form 12-Item Health Survey Mental Component Score (SF-12 MCS) for the effectiveness as screening tools for depression in Asian New Zealanders. A national, representative New Zealand Health Survey (NZHS) data set was used. In total, 1,277 participants were included in the analyses. The sensitivity and specificity values, as well as the areas under the receiver operating characteristics curves (AUROC), for the K10 and the SF-12 MCS scores were examined. The AUROCs for K10 and SF-12 MCS were 0.787 (95% CI [0.736, 0.837]) and 0.725 (95% CI [0.656, 0.793]), respectively. A less than optimal sensitivity and positive predictive value of K10 support the need to reexamine the optimal cut-off point according to the results of the Youden index. Strengthening the K10 predictive accuracy will increase the practical application among Asian populations.

"I teach them. I have no choice": experiences of primary care among transgender people in Aotearoa New Zealand.

This study aims to report primary care experiences among transgender people in Aotearoa New Zealand based on quantitative and qualitative data from a nationwide community-based survey of transgender people. Subsamples with a usual general practitioner were employed from the 2018 Counting Ourselves Survey (n=871) and the 2018/19 New Zealand Health Survey to assess inequities between these samples in primary care experiences and barriers. Guided by Andersen's Behavioural Model of healthcare access, we conducted a content analysis on comments from Counting Ourselves participants (n=153) to identify themes about issues of concern for transgender people when accessing primary care. Transgender participants had greater risk of feeling no confidence in their GPs (Mdifference=0.22; Cohen's d=0.39), reporting barriers accessing primary care due to cost (38.4% vs 17.4%; RR=2.21), and transport issues (13.5% vs 3.0%; RR=4.58) compared to the general population. Content analysis uncovered how transgender people's primary care experiences are shaped by healthcare environments, predisposing characteristics, and enabling resources. Our findings indicate ways to ensure primary care services are inclusive so that all transgender people feel welcome. This requires all primary healthcare professionals to demonstrate core trans-specific cultural safety when providing healthcare to transgender patients.

Nurse visit utilization and blood pressure control: A multi-cohort study in New Zealand.

This study aimed to retrospectively examine the contribution of nurses to population health outcomes with reference to nurse visits and blood pressure measurement in primary health settings. A retrospective study was conducted using New Zealand Health Survey (NZHS) from 2012 to 2017. Adult population who are 18 years old and over living in New Zealand. Age, gender, and ethnicity, the service utilization of primary health care nurse visit and blood pressure measurement were extracted from the NZHS (2012-2017) to compare with the service utilization of primary health care nurses by different demographic groups. Females who have treated hypertension shows higher utilization of nurse visit than males. From 2015 to 2017, the participants in this cohort have visited a primary health care nurse at least more than once within a year. With blood pressure control, the overall pooled results show the impact of visiting primary health nurses on systolic and diastolic blood pressure control. Our study at a national scale, demonstrated the impact of nurse's contribution to population health outcomes among people living with hypertension in New Zealand. Nurses are key to improving population health outcomes and to achieve universal health coverage.

Assessing need for primary care services: analysis of New Zealand Health Survey data.

Introduction The 2001 Primary Health Care Strategy provided significant new government funding for primary care (general practice and related services) via capitation funding formulas. However, there remain important unanswered questions about how capitation funding formulas should be redesigned to ensure equitable and sustainable service provision to all population groups. Aim To compare levels of chronic illness, utilisation, and unmet need in patients categorised as 'high-need' with those categorised as non-'high-need' using the definitions that are used in the current funding context, in order to inform primary care funding formula design. Methods Respondents of the New Zealand Health Survey (2018-19) were categorised into 'high-need' and non-'high-need', as defined in current funding formulas. We analysed: (i) presence, and number, of chronic diseases; (ii) self-reported primary care utilisation (previous 12 months); and (iii) self-reported unmet need for primary care (previous 12 months). Analyses used integrated survey weights to account for survey design. Results In total, 29% of respondents were 'high-need', of whom 50.2% reported one or more chronic conditions (vs 47.8% of non-'high-need' respondents). 'High-need' respondents were more likely than non-'high-need' respondents to: report three or more chronic conditions (14.4% vs 13.7%); visit a general practitioner more often (seven or more visits per year: 9.9% vs 6.6%); and report barriers to care. Discussion There is an urgent need for further quantification of the funding requirements of general practices serving high proportions of 'high-need' patients in order to ensure their viability, sustainability and the provision of quality of care.

Factors Associated with Having Family/Whānau or Close Friends Who Used Alcohol or Other Drugs in Harmful Ways among University Students in New Zealand.

The consequences of alcohol and other drug (AoD) use are well documented. This study investigated factors associated with having family/whānau or close friend who used AoD in harmful ways in New Zealand. Data came from a July–August 2020 cross-sectional survey of students from eight universities (n = 946). Participants were asked if they had family/whānau or close friends in New Zealand who consumed alcohol or used other drugs (cannabis, ecstasy/MDMA, methamphetamine, cocaine, heroin, prescription drugs, inhalants, or other) in a way that negatively impacted them, their family, or close friends in the last 12 months. Logistic regression assessed associations of having family/whānau or close friend who used AoD harmfully with student characteristics. Of respondents, 36.2% (33.1–39.4) had family/whānau or close friend who had consumed alcohol harmfully, and 42.9% (39.5–46.3) had family/whānau or close friend who had used at least one drug harmfully. Respondents’ age and ethnicity were significantly associated with having family/whānau or close friend who used AoD harmfully. The results suggest widespread harmful AoD use and potentially significant second-hand effects of AoD use in New Zealand. These data can be used to supplement information from traditional in-person surveys of individuals using alcohol and other drug (e.g., the New Zealand Health Survey).

Predictors of health-related quality of life in older New Zealanders with cardiovascular health problems.

With longer life expectancies, cardiovascular diseases are increasingly common among older adults, which also leads to functional changes that severely impact their quality of life. This study aimed to identify the predictors of health-related quality of life (HRQOL) among older New Zealanders with cardiovascular health problems. A cross-sectional data analysis of the 2015/16New Zealand Health Survey was performed. In total, 2203 older New Zealanders with cardiovascular health problems were identified and included in the final analyses. The association between demographics, physical activity, health measurements, and HRQOL was examined using a multiple linear regression model. Significant differences in HRQOL were identified between the demographics and cardiovascular risk factors. Predictors of higher HRQOL among older New Zealanders with cardiovascular conditions were increased physical activity (β=0.218), age (β=-0.067), employed (β=0.137), lower waist circumference (β=-0.261), male (β=0.127), and being without a history of diabetes (β=-0.071). Physical activity is the strongest predictor of HRQOL in older adults with cardiovascular problems. Older female New Zealanders with cardiovascular health problems have lower perceptions of their health status. These predictors should be considered while designing and developing intervention and health education that aims to improve the HRQOL of older adults.

Differences in the potential for dementia prevention between major ethnic groups within one country: A cross sectional analysis of population attributable fraction of potentially modifiable risk factors in New Zealand

Background: Twelve potentially modifiable risk factors (less education, hypertension, obesity, alcohol, traumatic brain injury (TBI), hearing loss, smoking, depression, physical inactivity, social isolation, diabetes, air pollution) account for an estimated 40% of worldwide dementia cases. We aimed to calculate population attributable fractions (PAFs) for dementia for the four largest New Zealand ethnic groups (European, Māori, Asian, and Pacific peoples) to identify whether optimal dementia prevention targets differed by ethnicity.Methods: We calculated risk factor prevalence for 10 risk factors using the New Zealand Health Survey 2018/19 and published reports for hearing loss and TBI prevalences. We calculated the PAF for each risk factor using calculated prevalence and relative risk estimates from previous meta-analyses. To account for risk factor overlap, we calculated communality of risk factors and a weighted PAF.Findings: The weighted PAF for dementia was 47.7% overall in New Zealand, 47.6% for Europeans, 51.4% for Māori, 50.8% for Pacific peoples, and 40.8% for Asians. Highest PAFs for Europeans were hearing loss (8%) and social isolation (5.7%), and for Asians hearing loss (7.3%) and physical inactivity (5.5%). For Māori and Pacific peoples, highest PAFs were for obesity (7.3% and 8.9% respectively) and hearing loss (6.5% and 6.6%).Interpretation: New Zealand has higher dementia prevention potential than worldwide estimates with high prevalences of untreated hearing loss and obesity. The relative contribution of individual risk factors PAFs varies by ethnic group. Public health strategies for dementia prevention need to be tailored to these differences.Funding: Health Research Council of New Zealand (HRC:20/021).

The cost of investigating weight-related comorbidities in children and adolescents in Aotearoa/New Zealand.

Expert recommendations for child/adolescent obesity include extensive investigation for weight-related comorbidities, based on body mass index (BMI) percentile cut-offs. This study aimed to estimate the cost of initial investigations for weight-related comorbidities in children/adolescents with obesity, according to international expert guidelines. The annual mean cost of investigations for weight-related comorbidities in children/adolescents was calculated from a health-funder perspective using 2019 cost data obtained from three New Zealand District Health Boards. Prevalence data for child/adolescent obesity (aged 2-14 years) were obtained from the New Zealand Health Survey (2017/2018), and prevalence of weight-related comorbidities requiring further investigation were obtained from a previous New Zealand study of a cohort of children with obesity. The cost of initial laboratory screening for weight-related comorbidities per child was NZD 28.36. Based on national prevalence data from 2018/2019 for children with BMI greater than the 98th percentile (obesity cut-off), the total annual cost for initial laboratory screening for weight-related comorbidities in children/adolescents aged 2-14 years with obesity was estimated at NZD 2,665,840. The cost of further investigation in the presence of risk factors was estimated at NZD 2,972,934. Investigating weight-related comorbidities in New Zealand according to international expert guidelines is resource-intensive. Ways to further determine who warrants investigation with an individualised approach are required.

Older People as Active Agents in Their Neighborhood Environments: Moving House Can Improve Quality of Life.

Neighborhood environments are an important aspect of well-being for older people. Developments of the general ecological model recognize older people as active agents who adapt their environments to fit their changing needs. We provide empirical support for a model suggested by Wahl et al., by examining interactions between neighborhood environments, personal situations, relocation, and quality of life (QoL) among older people. Two statistical models were tested with a sample of community-dwelling participants (aged 55-89) in the New Zealand Health, Work, and Retirement longitudinal surveys conducted in 2016 (T1) and 2018 (T2). Multiple linear regression assessed the association of perceptions of housing and neighborhood with QoL at T1 (n = 3682). QoL was predicted by housing satisfaction, and neighborhood satisfaction, accessibility, and trust (controlling for age, gender, marital status, home ownership, socioeconomic status, physical health, and mental health). Mixed analysis of variance showed that those who moved house between T1 and T2 reported lower housing and neighborhood satisfaction than nonmovers at T1. Over time T1-T2, movers reported less decline in housing satisfaction, and more positive change on all neighborhood perceptions, with higher perceptions of neighborhood accessibility than nonmovers at T2. These findings support the theoretical model and provide the impetus for a more detailed study of the effects of the environment on well-being in older age. Housing and neighborhood environments are a very practical focus for social policy change at local and national levels.

Investigating the Association Between Child Television Viewing and Measured Child Adiposity Outcomes in a Large Nationally Representative Sample of New Zealanders: A Cross-Sectional Study.

This study investigates the association between television (TV) viewing and child adiposity and if parental education and child ethnicity moderate this association. Cross-sectional, pooled (2013/2014-2016/2017) adult and child New Zealand Health Survey were matched resulting in 13,039 children (2-14y) and parent dyads. Child TV viewing was estimated using self-reported time for each weekday and weekend. The height (in centimeters), weight (in kilograms), and waist circumference of parents and children were measured. Childhood body mass index and obesity were defined using the International Obesity Task Force cutoff values. Effect modification was assessed by interaction and then by stratifying regression analyses by parent education (low, moderate, and high) and child ethnicity (Asian, European/other, Māori, and Pacific). Overall, watching ≥2 hours TV on average per day in the past week, relative to <2 hours TV viewing, was associated with a higher odds of obesity (adjusted odds ratio = 1.291 [1.108-1.538]), higher body mass index z score (b = 0.123 [0.061-0.187]), and higher waist circumference (b = 0.546 [0.001-1.092]). Interactions considering this association by child ethnicity and parent education revealed little evidence of effect modification. While TV viewing was associated with child adiposity, the authors found little support for a moderating role of parental education and child ethnicity.

Quantifying nicotine and alcohol consumption in New Zealand using wastewater-based epidemiology timed to coincide with census.

Accurate and timely information about nicotine and alcohol consumption is needed to inform effective policy. Wastewater-based epidemiology provides an opportunity to quantify consumption, which can complement traditional data collection methods. Wastewater samples were collected from seven wastewater treatment plants on seven consecutive days in three regions of New Zealand during the same week as the national census (6 March 2018). Samples were analysed for nicotine and alcohol metabolites using liquid chromatography-tandem mass spectrometry. Detailed catchment maps were developed and per capita consumption calculated. Observed nicotine consumption (mean 1528 ± 412 cigarettes/day/1000 people) was similar to national sales data. Observed alcohol consumption (mean 1155 ± 764 standard drinks/day/1000 people) was lower than estimated using alcohol availability data. Consumption of nicotine and alcohol was generally higher in the Bay of Plenty and Canterbury compared to Auckland, mirroring trends in the New Zealand Health Survey. Intra-regional differences were observed and the patterns could not be attributed to urbanisation alone. Nicotine consumption was consistent throughout the week whereas alcohol consumption often peaked at the weekend. Nicotine consumption was correlated with neighbourhood-deprivation. There was little correlation for alcohol. Wastewater-based epidemiology provides a quantitative dataset that complements traditional methods of investigating nicotine and alcohol consumption. Timing data collection to coincide with the census helps to account for the influence of population mobility when normalising consumption.

‘It’s how the world around you treats you for being trans’: mental health and wellbeing of transgender people in Aotearoa New Zealand

ABSTRACT Globally, transgender people have been described as a highly marginalised population due to cisgenderism that delegitimises their gender identities and expressions. Despite robust evidence from many countries noting the association of discrimination and stigma for being transgender with heightened mental health risks, qualitative research that examines the nuances of mental health indicators using health equity frameworks has been scant both in Aotearoa/New Zealand and overseas. Using an inductive thematic approach, this paper analysed 222 open-text responses in the mental health section of the 2018 Counting Ourselves: Aotearoa New Zealand, Trans and Non-binary Health Survey. Our findings showed four overarching themes: gender-affirming healthcare, mental healthcare services and accessibility, gender minority stress, and self-affirmation and social support. Participants’ narratives described pervasive gender minority stress experiences in gender-affirming and mental healthcare services, including unmet healthcare needs, lack of competency in healthcare delivery, and pathologisation of their genders. In social settings, our participants commonly reported discrimination and violence, although they also reported that self-affirmation strategies and social support offset the impacts of gender minority stress on their mental health. The current findings indicate the importance of exploring mental health outcomes for transgender people in relation to cisgenderism and resultant gender minority stress.

Unhealthy environments are associated with adverse mental health and psychological distress: Cross-sectional evidence from nationally representative data in New Zealand

This study combines data on the location of health-constraining ‘bads’ (i: fast-food outlets, ii: takeaway outlets, iii: dairy outlets and convenience stores, iv: alcohol outlets, and v: gaming venues) and health-promoting ‘goods’ (i: green spaces, ii: blue spaces, iii: physical activity facilities, and iv: fruit and vegetable outlets) into a nationwide Healthy Living Index. This was applied to pooled (2015/16–2017/18) nationally representative New Zealand Health Survey data, with mental health conditions (depression, bipolar, and anxiety) and psychological distress as population-level outcomes. Mental health was associated with proximity to environmental ‘goods’ and ‘bads’. Compared to those individuals who reside within the unhealthiest environments, there was a steady reduction in the odds of adverse mental health outcomes and psychological distress as the environment became more health-promoting.

What factors enable mid-life carers to re-enter the labour market in New Zealand?

To assess the characteristics of carers and the caregiving situation associated with return to paid employment among older unemployed carers in New Zealand. A baseline sample of 280 unemployed carers was identified from responses by people aged 55-70 to the 2012-2016 biennial waves of the New Zealand Health, Work and Retirement longitudinal survey. Multiple logistic regression analysis was used to assess characteristics uniquely predicting employment status at two-year follow-up. Sixteen percent were employed at follow-up. Economic living standards, physical health and preference to be in paid employment were positively associated with being employed at follow-up. There were no statistical differences according to age, gender, ethnicity, marital status, education and care characteristics. Individual preferences were the strongest predictor of return to paid employment. Despite New Zealand employment legislation allowing all employees to request flexible working arrangements, economic and health differences in workforce retention among carers persist.

Chlamydia Testing in New Zealand: Analysis of the 2014/2015 National Health Survey.

Diagnosis rates of Chlamydia trachomatis are high in New Zealand; 1.3% of men and 3.7% of women aged 15 to 29 years were diagnosed in 2016. Because testing rates are also higher in women, we sought to understand chlamydia testing by demographic and behavioral characteristics. Chlamydia testing in the past year, sexual behavior, and demographic characteristics were reported in the population-based 2014/2015 New Zealand Health Survey. Those aged 16 to 44 years who had a sexual partner in the past year were included. Testing prevalence was calculated, and associations were modeled. A total of 1677 men and 2323 women participated (89% response rate). Of these, 5.6% (95% confidence interval, 4.3%-7.2%) of men and 16.6% (14.7%-18.7%) of women were tested in the past year. Likelihood of testing in men was associated with having multiple partners and any condomless sex (adjusted relative risk, 11.93; 95% confidence interval, 5.70-24.98) and multiple partners with consistent condom use (3.77, 1.40-10.15) compared with one sexual partner and consistent condom use, and with Māori ethnicity (1.87, 1.05-3.31) compared with European/other. Among women, testing was associated with multiple partners with and without condomless sex (3.61 [2.69-4.85] and 2.81 [1.95-4.05], respectively), pregnancy (1.61, 1.18-2.18), and Asian ethnicity (0.52, 0.30-0.89). The study confirms that New Zealand men are much less likely to be tested than women, a potential reason for ongoing high chlamydia incidence among both sexes. The high testing rate in women includes many at low risk, and this divergence from recommendations is another issue to address.

Objectively measured waist circumference is most strongly associated in father-boy and mother-girl dyads in a large nationally representative sample of New Zealanders.

The prevalence of children with elevated weight or obesity is concerning for public health due to associated comorbidities. This study investigates associations between parental adiposity, physical activity (PA), fruit and vegetable consumption, and child adiposity and moderation by both child and parent gender. Cross-sectional nationally representative data from the New Zealand Health Survey were pooled for the years 2013/14-2016/17. Parent and child surveys were matched resulting in 13,039 child (2-14 years) and parent (15-70 years) dyads. Parent and child, height (cm), weight (kg) and waist circumference (WC) were measured objectively. Height and weight were used to calculate BMI. Linear regression, accounting for clustered samples (b [95% CI]) investigated associations between parental characteristics and child BMI z-score and WC. Interactions and stratification were used to investigate effect moderation by parent gender, child gender, and parent adiposity. Parental PA and fruit and vegetable consumption were unrelated to child adiposity. Overall, higher parent BMI was related to a higher child BMI z-score (b = 0.047 [0.042, 0.052]) and higher parental WC was related to a higher child WC (0.15 [0.12, 0.17]). A three-way interaction revealed no moderation by parent gender, child gender, and parent BMI for child BMI z-score ((b = 0.005 [-0.017, 0.027], p = 0.318). However, a three-way interaction revealed moderation by parent gender, child gender, and parent WC for child WC (b = 0.13 [0.05, 0.22]). The slightly stronger associations were seen between father-son WC (b = 0.20 [0.15, 0.24]) and mother-daughter WC (b = 0.19 [0.15, 0.22]). The findings are highly relevant for those wishing to understand the complex relationships between child-parent obesity factors. Findings suggest that family environments should be a key target for obesity intervention efforts and show how future public health interventions should be differentiated to account for both maternal and paternal influences on child adiposity.

Factors Associated With ED Use Among New Asian Immigrants in New Zealand: A Cross-Sectional Analysis of Secondary Data

IntroductionNew Zealand has an ethnically diverse population and continues to host immigrants from different countries. The present study aimed to examine the factors associated with ED use among new Asian immigrants in New Zealand. MethodsA secondary analysis of 2016-2017 New Zealand Health Survey database. Univariate and multivariate logistic regression models were employed. A total of 414 new Asian immigrants were identified. ResultsAsthma, diabetes, chronic pain, anxiety, hypertension, body mass index, waist measurement, perceived health status, and distress were associated with a significantly increased likelihood to ED visits. The multivariate logistic regression analysis revealed that asthma (adjusted odds ratio = 5.29, 95% confidence interval, 1.26-22.24) and perceived health status (adjusted odds ratio = 0.81, 95% confidence interval, 0.66-0.99) were factors associated with ED use among new Asian immigrants. ConclusionAsthma and perceived health status were the 2 key factors associated with ED use among new Asian immigrants in New Zealand. ED use among new Asian immigrants encompassed both chronic health conditions and mental health indicators.

“We only have the one”: Mapping the prevalence of people with high body mass to aid regional emergency management planning in Aotearoa New Zealand

IntroductionPeople have been left behind in disasters directly associated with their size, shape, and weight and are disproportionately impacted in pandemics. Despite alignment with known vulnerabilities such as poverty, age, and disability, the literature is inaudible on body mass. Emergency managers report little or no information on body mass prevalence. This exploratory study aimed to illustrate population prevalence of high body mass for emergency planning. MethodsCross-sectional data from the New Zealand Health Survey were pooled for the years 2013/14–2017/18 (n = 68 053 adults aged ≥15 years). Height and weight were measured and used to calculate body mass index. The prevalence of high body mass were mapped to emergency management boundary shapefiles. The resulting maps were piloted with emergency managers. ResultsMaps highlight the population prevalence of high body mass across emergency management regions, providing a visual tool. A pilot with 14 emergency managers assessed the utility of such mapping. On the basis of the visual information, the tool prompted 12 emergency managers to consider such groups in regional planning and to discuss needs. ConclusionsVisual mapping is a useful tool to highlight population prevalence of groups likely to be at higher risk in disasters. This is believed to be the first study to map high body mass for the purposes of emergency planning. Future research is required to identify prevalence at a finer geographical scale. More features in the local context such as physical location features, risk and vulnerability features could also be included in future research.

Equity in access to zero-fees and low-cost Primary Health Care in Aotearoa New Zealand: Results from repeated waves of the New Zealand Health Survey, 1996-2016

Primary Health Care in Aotearoa New Zealand is mainly funded through capitation-based funding to general practices, supplemented by a user co-payment. Funding is designed in part to keep the costs of care low for key groups in the population who have higher health needs. We investigated changes in the socio-demographic determinants of no-cost and low-cost access to Primary Health Care using data from sequential waves of the New Zealand Health Survey (1996/97–2016/17). Fees paid were self-reported and inflated using CPI-adjustment to the value of the 2018NZD.Over the 20-year study period, there was an increase in the population accessing low-cost care. Access to low-cost care was particularly high for Pacific people, but also higher for Māori and Asian people compared to Other/New Zealand European ethnicities. Area-level deprivation was a stronger predictor of access to low-cost care for non-Māori than for Māori. Although Māori were more likely than non-Māori to access low-cost care at all levels of deprivation, this was less evident in more deprived compared to more affluent areas. Given ongoing reported inequity for Māori being less able to afford primary health care, we suggest that future policies to improve access should be fully aligned with the articles of Te Tiriti o Waitangi and should focus on equity.

Mental Health Inequities among Transgender People in Aotearoa New Zealand: Findings from the Counting Ourselves Survey.

There has been little international research looking at differences in mental health across different age groups. This study examines mental health inequities between transgender people and the Aotearoa/New Zealand general population from youth to older adulthood. The 2018 Counting Ourselves survey (N = 1178) assessed participants’ mental health using the Kessler Psychological Distress Scale (K10) and diagnoses of depression and anxiety disorders, questions that were the same as those used in the New Zealand Health Survey. Our results showed significant mean score differences for transgender people on K10, and these differences were almost two standard deviations higher than the general population (Cohen’s d = 1.87). The effect size differences, however, decreased from youth to older adults. Regression analyses indicated trans women were less likely to report psychological distress than trans men and non-binary participants. There was an interaction effect for age and gender, with lower psychological distress scores found for younger trans women but higher scores for older trans women. The stark mental health inequities faced by transgender people, especially youth, demonstrate an urgent need to improve the mental health and wellbeing of this population by implementing inclusive institutional practices to protect them from gender minority stress.