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Articles by C. M Chang
Total Records ( 2 ) for C. M Chang
  N Yamada , S Ota , Ying Liu , C. M Chang , S Thaker , M Nakamura and M. Ito

Risk factors for pulmonary embolism (PE) have been identified among populations in Western countries but have not been well characterized in Japan. A hospital-based case-control design employed cases with PE, which diagnosed by standard imaging techniques; controls were individuals drawn by systematic random sampling from the hospital admission register. A total of 100 (38 males and 62 females) and 199 controls were identified. Patients with PE were younger (56.5 vs 60.9 years) and more likely to be female. The odds ratio ([OR] adjusted for other factors) and 95% confidence interval (CI) for risk of PE was elevated for the following: female gender, prolonged immobilization, history of prior venous thromboembolism (VTE), lower extremity varicose veins, body mass index (BMI) ≥ 25 kg/m 2, extremity paralysis, and gout/hyperuricemia. Inherited thrombophilia was found in 14 patients with PE (14%). Risk factors for PE in Japan are comparable in magnitude to those in Western countries; only one third of PE cases had received VTE prophylaxis.

  C. M Chang , S. C Liao , H. C Chiang , Y. Y Chen , K. C Tseng , Y. L Chau , H. J Chang and M. B. Lee

All suicides (n=12 497) in Taiwan in 2001–2004 were identified from mortality records retrieved from the National Health Insurance Database. Altogether, 95.1% of females and 84.9% of males had been in contact with healthcare services in the year before their death. Females received significantly more diagnoses of psychiatric disorders (48.0% v. 30.2%) and major depression (17.8% v. 7.4%) than males. Such differences were consistent across different medical settings where contact with hospital-based non-psychiatric physicians was as common as with general practitioners (GPs). However, diagnoses of psychiatric disorders were underdiagnosed in both genders.

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