How Much Does Dysphagia Cost? Understanding the Additional Costs of Dysphagia for New Zealand in Patients Hospitalised with Stroke.

INTRODUCTION: Dysphagia (i.e., disordered swallowing) is a consequence of stroke. Existing literature on the marginal cost of dysphagia after stroke is limited and ignores long-term impacts. Our aim was to determine the marginal 12-month cost attributable to dysphagia, including health-related quality of life (HRQoL) impacts, among patients hospitalised with stroke in New Zealand. METHODS: Secondary analysis of observational data from the REGIONS Care study, a national study from New Zealand of consecutively hospitalised patients with acute stroke between May 1, 2018, and October 30, 2018, including an outcome survey at 12 months among those who provided consent. Patients were identified as dysphagic if they received a swallow screen in hospital resulting in a speech language therapist review. Patients that required a nasogastric feeding tube in hospital were classified as "severe." Optimal linear propensity score matching was utilised to provide a group of patients to compare with stroke and dysphagia. All costs were converted to 2021NZD. RESULTS: Overall, of the 2,379 patients in the REGIONS cohort (51% male, median age: 78), 40% (944/2,379) were dysphagic (52% male, median age: 78), and 5% (111/2,379) were classified as severely dysphagic. Within 12 months of hospital discharge, dysphagia reduced HRQoL overall by 0.06 index points (95% CI: 0.028-0.100), and severe dysphagia by 0.12 index points (95% CI: 0.03-0.20). The estimated marginal 12-month cost attributable to stroke-related dysphagia was NZD 24,200 on average per patient. This estimate includes the additional hospitalisation costs (NZD 16,100), community rehabilitation services (NZD 570), hospital level aged residential care (NZD 4,030), and reduced HRQoL (NZD 3,470) over a 12-month period post-hospital discharge. The overall total marginal cost for those with severe dysphagia was NZD 34,000 per patient. CONCLUSION: We report cost estimates to 12 months from a national perspective on the additional costs and HRQoL outcomes of dysphagia for people hospitalised with stroke in New Zealand. Findings provide a novel contribution internationally since few prior studies have extended beyond the acute hospital phase of care. By quantifying the economic burden, we provide information to decision makers to improve dysphagia management strategies and ultimately enhance the overall HRQoL for people with stroke and dysphagia.

Estimating the Incidence and Prevalence of Dysphagia in New Zealand.

Dysphagia imposes a substantial economic burden on global healthcare systems due to its pervasive, high-cost nature. To comprehend this burden, we must first assess dysphagia's prevalence and incidence in the general population. Existing studies on dysphagia prevalence encompass minor symptoms, while it is the severe cases that drive significant healthcare costs. We address this knowledge gap by estimating dysphagia incidence and prevalence in the New Zealand population, projecting future demographics of affected individuals. Incidence and prevalence rates of dysphagia within specific underlying medical conditions are sourced from existing literature. Median projected population estimates from Statistics New Zealand, by age, sex, and ethnicity are used to calculate dysphagia projections. Where possible, projections by age and ethnicity are provided until 2038 and projections by age and sex until 2073. In 2020, 9300 New Zealanders are estimated to have newly developed dysphagia while 1.5% of the general New Zealand population are estimated to have been living with the effects of the condition. By 2073, the number of individuals newly diagnosed annually is projected to increase to 24,500 and the prevalence of dysphagia is projected to increase to 2.6%. These results indicate that a significant number of New Zealanders are impacted by dysphagia. This number is predicted to dramatically increase in the future, mostly due to population ageing, indicating an increased burden on society and healthcare systems. Our work provides a useful starting point for countries worldwide to assess future healthcare resource demands associated with dysphagia, assisting with healthcare provision planning.

Maternal stress and birth outcomes: Evidence from an unexpected earthquake swarm.

We examine the impact of a major earthquake that unexpectedly affected the Canterbury region of New Zealand on a wide-range of birth outcomes, including birth weight, gestational age, and an indicator of general newborn health. We control for observed and unobserved differences between pregnant women in the area affected by the earthquake and other pregnant women by including mother fixed effects in all of our regression models. We extend the previous literature by comparing the impact of the initial unexpected earthquake to the impacts of thousands of aftershocks that occurred in the same region over the 18 months following the initial earthquake. We find that exposure to these earthquakes reduced gestational age, increased the likelihood of having a late birth, and negatively affected newborn health-with the largest effects for earthquakes that occurred in the first and third trimesters of pregnancy. Our estimates are similar when we focus on just the impact of the initial earthquake or, in contrast, on all earthquakes controlling for endogenous location decisions using an instrumental variables approach. This suggests that the previous estimates in the literature that use this approach are likely unbiased and that treatment effects are homogenous in the population. We present supporting evidence that the likely channel for these adverse effects is maternal stress.

Is health care infected by Baumol's cost disease? Test of a new model.

Rising health care costs are a policy concern across the Organisation for Economic Co-operation and Development, and relatively little consensus exists concerning their causes. One explanation that has received revived attention is Baumol's cost disease (BCD). However, developing a theoretically appropriate test of BCD has been a challenge. In this paper, we construct a 2-sector model firmly based on Baumol's axioms. We then derive several testable propositions. In particular, the model predicts that (a) the share of total labor employed in the health care sector and (b) the relative price index of the health and non-health care sectors should both be positively related to economy-wide productivity. The model also predicts that (c) the share of labor in the health sector will be negatively related and (d) the ratio of prices in the health and non-health sectors unrelated, to the demand for non-health services. Using annual data from 28 Organisation for Economic Co-operation and Development countries over the years 1995-2016 and from 14 U.S. industry groups over the years 1947-2015, we find little evidence to support the predictions of BCD once we address spurious correlation due to coincident trending and other econometric issues.

The Drug Burden Index and Level of Frailty as Determinants of Healthcare Costs in a Cohort of Older Frail Adults in New Zealand.

OBJECTIVES: Frailty is common in older people and is associated with increased use of healthcare services and ongoing use of multiple medications. This study provides insights into the healthcare cost structure of a frail group of older adults in Aotearoa, New Zealand. Furthermore, we investigated the relationship between participants' anticholinergic and sedative medication burden and their total healthcare costs to explore the viability of deprescribing interventions within this cohort. METHODS: Healthcare cost analysis was conducted using data collected during a randomized controlled trial within a frail, older cohort. The collected information included participant demographics, medications used, frailty, cost of service use of aged residential care and outpatient hospital services, hospital admissions, and dispensed medications. RESULTS: Data from 338 study participants recruited between 25 September 2018 and 30 October 2020 with a mean age of 80 years were analyzed. The total cost of healthcare per participant ranged from New Zealand $15 (US dollar $10) to New Zealand $270 681 (US dollar $175 943) over 6 months postrecruitment into the study. Four individuals accounted for 26% of this cohort's total healthcare cost. We found frailty to be associated with increased healthcare costs, whereas the drug burden was only associated with increased pharmaceutical costs, not overall healthcare costs. CONCLUSIONS: With no relationship found between a patient's anticholinergic and sedative medication burden and their total healthcare costs, more research is required to understand how and where to unlock healthcare cost savings within frail, older populations.

You'll never walk alone - The effects of walkability on pregnancy behaviors and outcomes.

This study investigates the relationship between local walkability and physical activity and subsequent health outcomes among pregnant women - for whom walking is the recommended, and by far most common, form of exercise. Using an EPA measure of walkability at the county level (as well as other county-level characteristics) combined with rich individual-level data on pregnant women yields evidence that higher walkability translates into improvements in maternal and infant health outcomes as well as physical activity. Using the 2011 Natality Detail Files with geographic identifiers and controlling for the overall health of women in the community as well as the individual mother's pre-pregnancy BMI, we show that women residing in more walkable counties are less likely to experience preterm birth, low birth weight, gestational diabetes and hypertension. While one potential mechanism is through improved gestational weight gain, the evidence points to more general improvements in health as walkability does not seem to prevent excessive weight gain or macrosomic babies. Evidence that these general improvements derive at least in part from greater physical activity comes from analyses using the 2011 Behavioral Risk Factor Surveillance System, in which higher walkability translates into more physical activity among pregnant women (and also relative to their non-pregnant counterparts). Our study suggests more broadly that pregnant women's physical activity responds to factors that facilitate it and that such activity makes a difference to birth outcomes.

Social capital and health: a meta-analysis.

The relationship between social capital and health has received extensive attention in fields such as public health, medicine, epidemiology, gerontology and other health-related disciplines. In contrast, the economics literature on this subject is relatively small. To address this research gap, we investigate the cross-disciplinary empirical literature using meta-analysis. We analyze 12,778 estimates from 470 studies. Our analysis finds that social capital is significantly related to a variety of positive health outcomes. However, the effect sizes are consistently very small. This finding is robust across different types of social capital (e.g., cognitive, structural, bonding, bridging, linking), and for many different measures of health outcomes (e.g., mortality, disease/illnesses, depression). The small effects that we estimate cast doubt on recent initiatives to promote health through social capital such as those by the WHO, the OECD, and US Healthy People 2020.

Comprehensive clinical assessment of home-based older persons within New Zealand: an epidemiological profile of a national cross-section.

OBJECTIVE: Since 2012, all community care recipients in New Zealand have undergone a standardised needs assessment using the Home Care International Residential Assessment Instrument (interRAI-HC). This study describes the national interRAI-HC population, assesses its data quality and evaluates its ability to be matched. METHODS: The interRAI-HC instrument elicits information on 236 questions over 20 domains; conducted by 1,800+ trained health professionals. Assessments between 1 July 2012 and 30 June 2014 are reported here. Stratified by age, demographic characteristics were compared to 2013 Census estimates and selected health profiles described. Deterministic matching to the Ministry of Health's mortality database was undertaken. RESULTS: Overall, 51,232 interRAI-HC assessments were conducted, with 47,714 (93.1%) research consent from 47,236 unique individuals; including 2,675 Maori and 1,609 Pacific people. Apart from height and weight, data validity and reliability were high. A 99.8% match to mortality data was achieved. CONCLUSIONS: The interRAI-HC research database is large and ethnically diverse, with high consent rates. Its generally good psychometric properties and ability to be matched enhances its research utility. IMPLICATIONS: This national database provides a remarkable opportunity for researchers to better understand older persons' health and health care, so as to better sustain older people in their own homes.