Social capital and preventive care use among the elderly under Taiwan's National Health Insurance.

OBJECTIVE: The National Health Insurance (NHI) system in Taiwan provides free annual preventive care services and other disease-specific preventive care services under low copayments to people aged 65 and older, yet their utilization rates remain low ever since implementation. This study investigates whether social capital is associated with preventive care use among people aged 65 and older. METHOD: Using the 2009 National Health Interview Study, this study measures social capital by the elderly's social network and social participation, and employs the logistic regressions to estimate the association between social capital and the odds of using a variety of preventive care services. RESULTS: The results show that social capital in terms of social network and social participation is significantly associated with the use of NHI general preventive care services. For disease-specific preventive care, it is social participation, rather than social network, that is related to the utilization rate. CONCLUSION: The associations between social capital and different types of preventive care use found in our study could be considered as an important factor when making policies to promote the utilization of preventive care.

Out-of-pocket expenditures on traditional and Western medicine in Taiwan.

OBJECTIVES: Coexistence of traditional and modern medicine is common in Asian countries. This paper investigates out-of-pocket expenditures on traditional medicine, traditional medical service, and Western medicine by households in Taiwan. METHODS: Using a national sample of 13,765 households, the three expenditure equations are estimated with a censored system procedure. Effects of socio-demographic variables are explored by calculating marginal effects on probabilities and levels of medical expenses. RESULTS: Different types of medical expenditures are correlated. Households with higher income and more aging members use more traditional medicine than others, as do households in agricultural sector and in urban areas. In addition, households living in rural areas relative to those in the cities are more likely to use and also spend more on traditional service. Regional disparity of health care utilization is found. CONCLUSIONS: Higher income households spend more on traditional medicine, likely due to the fact that patients usually pay out-of-pocket for herbal materials needed in preparation of traditional medicine. To ensure equity in health care utilization, establishment of hospitals and clinics in rural areas should be considered.

Modifiable health risk factors and medical expenditures - The case of Taiwan.

To contain escalating healthcare spending has become a great challenge for many countries around the world. Among all factors influencing medical costs, extensive studies have shown that adoption of healthy lifestyles such as not smoking, moderate drinking, eating healthy food, and exercising regularly can contribute to good health and lower the odds of having diseases that result in higher medical spending. The goal of this paper is to explore the relationship between modifiable risk factors and healthcare costs in Taiwan. A two-part model is employed to estimate the association between modifiable risk factors and medical expenditures. A logit model is used in the first stage of estimation and a generalized linear model is used in the second stage of estimation. Linking the 2001 National Health Interview Survey (NHIS) and the claims data in the National Health Insurance Research Database (NHIRD) in Taiwan, I find some significant associations between several lifestyle variables and medical expenditures. Former smokers are found to have higher probability of using medical care and incur higher medical expenses. People with exercise habits are less likely to use inpatient care services, and they incur lower inpatient expenses. Therefore, healthcare policies promoting non-smoking and physical activities should be used in Taiwan to curb rising expenditures and to achieve better care for people with chronic diseases.

Care-giver advice as a preventive measure for drinking during pregnancy: zeros, categorical outcome responses, and endogeneity.

We conduct an empirical investigation of the impact of prenatal care-giver advice on alcohol consumption by pregnant women. In the design of the model and estimator, we pay particular attention to three aspects of the data. First, a large proportion of pregnant women do not drink at all. To accommodate this aspect of the sample we base the essential formulation of the model on the modified version of the two-part approach of Duan et al. (Journal of Business and Economic Statistics 1983; 1: 115-126.) suggested by Mullahy (Journal of Health Economics 1998; 17: 247-281.). Second, in the survey that we analyze (the 1988 National Maternal and Infant Health Survey - NMIHS), respondents were only required to report their consumption up to a specified range of values (e.g. 1-2 drinks per week, 2-5 drinks per week, and so on). For this reason, the model is cast in the grouped regression framework of Stewart (Review of Economic Studies 1983; 50: 141-149.). Third, the binary physician advice variable is likely to be endogenous and the econometric specification explicitly accounts for this possibility. To summarize the results, we find that failing to account for endogeneity leads to the counterintuitive conclusion that advice has a positive and statistically significant influence on drinking during pregnancy. When the model is extended to allow for potential endogeneity, we find that advice has a negative and statistically significant impact.

The association between health risks and medical expenditures in a Japanese corporation.

PURPOSE: To examine the relationship between health risks and medical care expenditures in an employer setting in Japan. DESIGN: A cross-sectional, correlational study. SETTING: A large Japanese corporation. SUBJECTS: A total of 6543 employees of a large Japanese electronics company, for whom medical expenditures, lifestyle risks and biometric data were available, were included in the analysis. Seventy-six Percent were male, and subjects were primarily white-collar workers. MEASURES: Medical expenditure data were available for fiscal year 2000, including inpatient, outpatient, and total expenditures, measured in Japanese yen. Binary expenditure indicators for those having no claims and those having high claims (90th percentile) were also created. Risk measures included biometric assessment of high blood pressure and high body mass index (BMI, body weight and height) and self-reported stress, lack of exercise, excess alcohol consumption, poor nutrition, current smoking, and recent quitting. High cholesterol and high blood glucose measures were also available for some subjects from company physicals. RESULTS: Average total expenditures were 48,017 yen (US$445). The 90th percentile of the expenditure distribution was approximately 111,750yen (US$1037). The most commonly reported risk factors were lack of exercise (52.9%), current smoking (35 %), stress (33%), and poor nutritional habits (23.6%). Least common were recently quitting smoking (2%), high blood pressure (4.1 %), and high blood glucose (9.4 %). The prevalence of overweight or obesity was 15.9%. High blood pressure and recent quitting were consistently related to high expenditures, after adjusting for the influence of other predictors. Adjusted expenditures were 76 % higher for recent quitters and 22.6% higher for employees with high blood pressure. Males and younger employees had consistently lower expenditures. Current smoking poor nutrition, and alcohol risk were also associated with lower expenditures. Those with multiple cardiovascular risk factors had adjusted medical expenditures that were 128% higher than those with no cardiovascular risks. Those who had multiple risk factors for stroke had expenditures that were 13% lower than those without stroke risk factors. CONCLUSIONS: This paper represents a first step in examining the association between health risks and medical expenditures in Japanese employees. The investigation uncovered some significant levels of risk for lack of exercise, smoking, and stress. Although results indicate some significant associations between health risks and medical expenditures, several unexpected assocations were noted that require further study. Such information provides a solid foundation for health promotion efforts in Japan and direction for subsequent investigations of health risks and medical expenditures. Future studies should address important issues of health risk measurement, data collection, and research design.