Hepatitis B Virus (HBV)

Category: Airways Diseases

Epidemiology of Chronic Airways Diseases in Japan: Passive smoking

No correlation between prevalence of symptoms aiid air pollution Was observed among children who had no allergic disposition (Thble 5). Allergic disposition is defined here as children who have the anamnesis of allergic disease (nettle rash, allergic coryza, or eczema) or family history of allergic disease (asthma or allergic coryza). On the Other hand, it […]

Epidemiology of Chronic Airways Diseases in Japan: Prevalence of Respiratory Symptoms

Epidemiology of Chronic Airways Diseases in Japan: Prevalence of Respiratory Symptoms

Since the 1960s, when air pollution became one of the most serious health problems in Japan, numerous surveys using the British MRC questionnaire on respiratory symptoms have been taken throughout the country to discover the direct health hazard of high concentrations of SO,. Fortunately, air pollution by SO, was lowered rapidly by technical improvement; however, […]

Figure 2. The proportion of various diseases in the total of all deaths from respiratory diseases in Japan, between 1951 and 1985, expressed as mean values for consecutive 5-year periods.

Epidemiology of Chronic Airways Diseases in Japan: Changes in Mortality From Lung Diseases

Changes in Mortality From Lung Diseases Based on official statistics on causes of death, the number of deaths caused by various respiratory diseases within the past 35 years was analyzed. The number of deaths from each disease was expressed as the mean over 5 years. Table 1 shows the death rate from all respiratory diseases […]

Figure 1. Trends in industrial production in Japan and mean sulfur dioxide concentration at 15 observation spots, between 1945 and 1985.

Epidemiology of Chronic Airways Diseases in Japan

After World War II, Japan started reconstruction from a μL very poor socioeconomic condition. In those days, many people were suffering from malnutrition, unemployment, and poor living conditions, so factories had to be started without considering air pollution. As industry grew rapidly, environmental pollution such as air and water pollution spread widely throughout the country. […]

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