Cheng-Hua Lee

The Prevalence and Incidence of Treated Major Depressive Disorder among National Health Insurance Enrollees in Taiwan, 1996 to 2003

Objective: We used the National Health Insurance (NHI) database to examine the prevalence and incidence of treated major depressive disorder (MDD) and their associated factors. Method: The National Health Research Institute provided a database of 200 432 randomly selected subjects for study. We obtained a population-based random sample aged 15 years or older (n = 136 045) as a fixed cohort dated 1996 to 2003. We identified study subjects with a principal diagnosis of MDD who had at least one service claim during these years for either ambulatory or inpatient care. Results: From 1996 to 2003, the cumulative treated prevalence increased from 1.67 per 1000 to 17.24 per 1000. From 1997 to 2003, the annual treated incidence increased from 1.89 per 1000 to 2.58 per 1000. A higher incidence of treated MDD was detected in the groups aged 25 to 44 years (hazard ratio [HR] 1.28; 95% confidence interval [CI], 1.13 to 1.45), 45 to 64 years (HR 1.90; 95%CI, 1.66 to 2.16), and 65 years or older (HR 1.87; 95%CI, 1.59 to 2.20); in female subjects (HR 1.97; 95%CI, 1.80 to 2.15); in those with with an insurance amount of US

Prevalence, correlates, and disease patterns of antipsychotic use in Taiwan

1281 or more (HR 1.15; 95%CI, 1.01 to 1.31); in those with a fixed premium (HR 1.44; 95%CI, 1.27 to 1.62); and among those who lived in urban areas (HR 1.22; 95%CI, 1.10 to 1.35). Conclusions: For treated MDD, the prevalence and incidence in Taiwan were lower than in community studies in Western countries. Individuals with MDD are underdiagnosed and undertreated in Taiwan.

Treated Prevalence and Incidence of Dementia Among National Health Insurance Enrollees in Taiwan, 1996-2003

Aim:  The population‐based National Health Insurance database was used to investigate the prevalence, correlates, and disease patterns of antipsychotic use in Taiwan.

Variation in the cervical cancer screening compliance among women with disability.

The National Health Insurance database to determine the treated prevalence and incidence of dementia in Taiwan was used in this study. A population-based random sample of 22 118 subjects aged 65 or older was obtained as a dynamic cohort. Those study subjects who had filed at least one service claim from 1996 to 2003 for either outpatient care or inpatient care with a principal diagnosis of dementia were identified. The annual treated prevalence increased from 0.71% to 1.92% from 1996 to 2003. The annual treated incidence rates were around 0.76% to 1.04% per year from 1997 to 2003. The annual treated incidence rates for the 5-year age groups, from 65 to 90 years and older, were 0.44%, 0.65%, 0.98%, 1.46%, 1.81%, and 1.80%, respectively. Both the treated prevalence and incidence rates of dementia in National Health Insurance were lower than those of community studies.

Prevalence, correlates, and disease patterns of antidepressant use in Taiwan.

Objective To investigate the relationship between the level of disability and regular Pap smear testing among women in Taiwan and explore how this relationship may vary with the various levels of physician availability. Methods This population-based cohort study followed a total of 5,469,581 women from Taiwan, who were 30 years old or older in 2001 and covered the period January 2001 to December 2003. Of the total study population, 184,701 individuals were women with disability. Gynecologist-obstetrician/general practitioner to female population ratio was used as an indicator of physician availability. Multiple logistical regression models were used. Results After adjusting for age, socioeconomic status, racial group, residence area and physician availability, women with severe disability (OR = 0.38; 95% CI: 0.38, 0.39) were the least likely to undergo Pap smear testing. Women with moderate disability (OR = 0.59; 95% CI: 0.58, 0.60) and mild disability (OR = 0.88; 95% CI: 0.86, 0.89) were also significantly less likely to undergo a routine test than women without disability. Women residing in the areas with the greatest physician availability (OR = 0.93; 95% CI: 0.93, 0.94) were significantly less likely to undergo a Pap test than those in the areas with the lowest level of resource availability. The disparity in routine screening between women with and without disability remained across the different levels of physician availability. Conclusions In Taiwan, women with disability were found to be at higher risk of lower compliance than women without disability. The gap between women with and without disability persisted across different levels of physician availability.

Pregnancy outcomes among native and foreign-born women in Taiwan: maternal health utilization.

OBJECTIVE We used the population-based National Health Insurance database to investigate the prevalence, correlates, and disease patterns of antidepressant use in Taiwan. METHODS The National Health Research Institutes provided a database of 200,000 random subjects for study. We obtained a random sample of 145,304 subjects 18 years or older in 2004. Study subjects who had been given at least 1 antidepressant drug prescription during this year were identified. We detected factors associated with any antidepressant use. We also examined the proportion of antidepressant use for psychiatric and medical disorders. RESULTS The 1-year prevalence of antidepressant use was 4.3%. Higher antidepressant use was found in the aged group, in female subjects, in individuals with a fixed premium and with an insurance amount lower than US

Incidence and Frequency of Endoscopic Sympathectomy for the Treatment of Hyperhidrosis Palmaris in Taiwan

640, in individuals with disability, and among subjects in the central area. Among subjects with antidepressant use, the higher proportions of psychiatric disorders were for neurotic depression (21.1%), anxiety state (17.6%), major depressive disorder (14.6%), special symptoms or syndromes not elsewhere classified (8.5%), and depressive disorder not elsewhere classified (5.4%). With respect to medical disorders, the higher proportions of antidepressant use were for diseases of the genitourinary system; musculoskeletal system and connective tissue; symptoms, signs, and ill-defined conditions; circulatory system; endocrine, nutritional, and metabolic diseases and immunity disorders; and nervous system and sense organs. CONCLUSION Higher proportion of psychiatric disorders among subjects with antidepressant use were for depressive disorder and anxiety disorder. However, 39% of the subjects were using antidepressants for nonpsychiatric disorders in Taiwan.

Gender disparities in AMI management and outcomes among health professionals, their relatives, and non-health professionals in Taiwan from 1997 to 2007

BACKGROUND As immigrant populations increase rapidly around the world and with most immigrant women being of childbearing age, their use of pregnancy-related healthcare has become an important health issue. However, there has been only limited research available on maternal health use by foreign immigrants in Asia. This study aims to compare inpatient use for pregnancy complications and type of delivery among foreign and native-born women of different socioeconomic status in Taiwan. METHODS Using the 2001 National Health Insurance (NHI) database, 232,828 deliveries were identified, of which 222,852 were to native-born mothers and 9,976 were to foreign-born mothers. Univariate and multivariate logistic regression models were used to determine the likelihood of using inpatient services for any pregnancy complication and for cesarean section. RESULTS Our results indicate that after adjusting for other factors, foreign-born women were less likely than native-born women to use inpatient services for complicated pregnancies across all socioeconomic status (SES) levels. On the other hand, a pattern emerged among the higher SES groups showing a similar likelihood of cesarean section when foreign-born and native-born mothers were compared. This was not the case for the lower SES groups, however, where native-born mothers were significantly more likely to undergo a cesarean section than foreign-born mothers. CONCLUSIONS Foreign-born mothers tended to use fewer inpatient services for complicated pregnancies than native-born mothers and were less likely to undergo cesarean section. As immigrants increase across the world as a result of globalization and with half of them being female, pregnancy-related health service use among this group needs our attention.

Who Is at Risk of Death in an Earthquake

Hyperhidrosis palmaris (HP) is a rather common disease in Taiwan. Taiwan is a leading nation in terms of the surgical treatment of this disease using thoracic endoscopic sympathectomy. However, the currently available epidemiological information regarding HP is insufficient. To date, the incidence of HP and the percentage of patients treated surgically have not been reported. We investigated the incidence of HP treated in 2004 by sampling Taiwans National Health Insurance database. Patients who were diagnosed with HP during 2004 were identified by International Classification of Diseases, 9th Clinical Modification code 780.8 from a database of about 22 million beneficiaries, and were followed to 2006. Those who had been diagnosed as HP in 2002 or 2003 were excluded. Patients who underwent surgery were identified by the treatment codes 83026C (dorsal sympathectomy) and 83085B (transendoscopic dorsal sympathectomy, TES). Factors included in the analysis included age, sex, time of operation and hospitalization for surgery. In total, 15,839 patients with HP were identified. The incidence was 7.2 per 10,000 beneficiaries. The study sample included 7,603 males with an incidence of 6.9 per 10,000 beneficiaries, and 8,236 females with an incidence of 7.4 per 10,000 beneficiaries. The incidence was highest among patients aged 20–29 years old. The incidence decreased with increasing age (Mantel‐Haenszel χ2 test for trend, p < 0.001), and 3,755 cases (23.7%) received an operation, of which 1,733 were male (22.8% of all male patients) and 2,022 were female (24.6% of all female patients) (p = 0.009). Of these, 99.3% underwent transendoscopic dorsal sympathectomy, and 94.7% underwent surgery within 1 month of the initial diagnosis. Males underwent surgery sooner than females (p = 0.004). Adjusted multivariate logistic regression analysis showed that patients aged 20–29 were more likely to undergo surgery than the other age groups (odds ratio: 2.28; 95% confidence interval: 2.07–2.52). Regional hospitals had the highest chance to perform the operation (odds ratio: 4.87; 95% confidence interval: 4.41–5.37). Here, we have reported the incidence of HP in Taiwan in 2004 and concluded that the incidence was higher in females than in males. About one‐quarter of patients underwent surgery, mostly within 1 month after attending an outpatient clinic; most surgical interventions involved endoscopic sympathectomy. This report fulfills the epidemiological information gap of HP and provides important data for future health care delivery.

Suicides after the 1999 Taiwan earthquake

Numerous reports of gender differences in the management and mortality of acute myocardial infarction (AMI) patients have raised concerns on gender inequity in cardiac care. However, no study has explored whether gender disparity exists among health professionals and their relatives. Therefore, this study assesses gender disparity in the management and mortality of AMI patients in Taiwan, and determines whether such disparity exists among health professionals and their relatives. National Health Insurance (NHI) files were used to obtain information on a cohort of 79,360 AMI patients aged 30-85 years in Taiwan from 1997 to 2007. The use of catheterization and revascularization (CATH/RAVS) and one-year mortality were compared between men and women in all adult patients, health professionals and their relatives, and non-health professional patients. Taiwanese women with AMI were significantly less likely than their male counterparts to receive CATH/RAVS, and showed greater one-year mortality. Similarly, women in the professional group were significantly less likely to receive CATH/RAVS. However, they did not have worse survival outcomes (hazard ratio: 1.01; 95% CI: 0.68-1.50) compared to men. Regarding mortality following CATH/RAVS, no gender disparities against women were observed in health professionals and their relatives, whereas significant gender disparities persisted in non-health professional patients. In conclusion, this study shows a substantial gender disparity against women in the management and one-year survival of AMI patients in Taiwan. This research extends earlier studies by showing similar gender gaps in treatment uses among health professionals and their relatives without strong evidence on gender disparities against women in survival.