No abstract available.
Asthma* ; Epidemiology*

A study of 1544 pupils in Hanoi urban and suburban areas showed that the prevalence of asthma was 10.42%, in which the prevalence in urban area was 12.56%, higher than that in suburban area (7.52%); the prevalence in male pupils were higher than that in female ones. 9.6% cases suffered asthma from under 1 year old. The invidual allergic history, the allergic and asthma history of the family as well as environment factors are strongly associated with the asthma prevalence.
Asthma ; Epidemiology ; Pupil

Among 1789 residents in Lach Tray ward of Hai Phong City 71 suffering from broncho asthma. In general the prevalence was 3,97%, in children 4,10%, in dults 3,92%, clinically 70% had a >5 year long duration of the disease. 54,93% had the crisis in winter, nocturnal crisis 70,42%, dyspnea 100% maily in expiration with the frequency of 25 rhythm min, sputum cough 74,64% and other signs. The leading causes were: resfriratory tract inflammation, changed weather, allergy and allergenic foods.
Asthma ; Diagnosis ; Epidemiology

Studied on 892 pupils at 8 primary schools and secondary schools in urban Hanoi city, among them 112 pupils were infected with bronchial asthma and the prevalence of bronchial asthma in Hanoi urban pupils was very high (12.56%). The history of personal allergy, the allergic and asthma history of family as well as environment factors were strongly associated to the bronchial asthma prevalence. It was the first priority to implement an asthma control program in school
Asthma ; pupil ; epidemiology

Study was carried out on 3502 children in Thai Binh, Quang Tri, Binh Duong. The result showed that: rate of children under 5 diagnosised asthma in the three psovinces was 7.1%. In there, Thai Binh were 10.0%, Quang Tri 6.3%, Binh Duong 5.1%. Wheezing rate in children under 5 was 30.2% and in children under 1 was 79%. Allergy history factor have closed relationship to disease prevalence. Rate of having allergic history in children with asthama was higher by 3.23 times than that in children without asthma. Rate of having infection history in children with asthma was higher by 3.5 times than that in children without asthma
Asthma ; Child ; Epidemiology

Studying on 127 medical records of asthma patients who were treated at the Pediatric Department of Bach Mai hospital between 1/1999 and 1/2001 showed that the hospitalization of asthma children were most common in March, April and September to December. Male is more than female with the ratio were 1:1.49. There were correlation between allergic history of patients and family with asthma. The short acting beta2-adrenecgic agonists were used most common in treatment for asthma (92.64%), with oral route is highest rate, followed by nebulization and inhalation, intravenous route was less common. There were 47% cases patients without signs of bacterial infections were given antibiotics
Asthma ; Child ; Epidemiology ; Therapeutics ; Pharmaceutical Preparations

Asthma ; epidemiology ; Humans ; Rhinitis, Allergic ; Rhinitis, Allergic, Perennial ; epidemiology

Asthma/*complications ; Asthma/epidemiology ; *Education, Medical ; Malaysia/epidemiology ; *Patient Education ; Prevalence ; Severity of Illness Index

Humans ; Nasal Polyps/epidemiology* ; Cross-Sectional Studies ; Rhinosinusitis ; Asthma/epidemiology* ; Sinusitis/epidemiology* ; Chronic Disease

OBJECTIVES: Isocyanate-induced asthma is the most prevalent occupational asthma in Korea. The main purpose of this study was to estimate the etiologic fraction of isocyanate-related asthma in isocyanateexposed (EFe) workers and to measure the magnitude of preventable occupational asthma. METHODS: Asthma admissions from 2000 to 2005 were analyzed in a cohort containing 10,861 isocyanate-exposed workers and 324,618 isocyanate non-exposed workers who underwent the specialized health examination from January, 2000 to December, 2004. The cohorts of Isocyanate and noise-exposed workers were established using the same data base of Korea Occupational Safety and Health Agency (KOSHA). Asthma admissions were investigated by matching the National Health Insurance Claim Data (NHICD). The standardized rate ratio (SRR) of admission was estimated by Poisson regression method to allow unbiased comparisons across exposure and other variables such as age and sex. The etiologic fraction for the isocyanate-exposed (EFe) workers was calculated using this formula (Efe=SRR-1/SRR). RESULTS: Twenty-eight asthma admissions among the isocyanate-exposed workers and 321 non-exposed workers were observed during 2000~2005. The crude admission rate was 57.2 per 100,000 person-years for the isocyanate-exposed workers and 25.0 for the noise-exposed workers. Compared to the noiseexposed workers, the isocyante-exposed workers had significantly higher asthma admission (SRR=2.80 95%CI=1.89~4.14). The etiologic fraction for the isocyanate-exposed (EFe) workers was 64%. CONCLUSIONS: This study was limited by the restriction to admission cases and the short follow-up periods. Any difference of admission accessibility between the isocyanate-exposed and non-exposed workers will lead to either over- or under-estimation of the biased etiologic fraction for the isocyanateexposed workers. The etiologic fraction for the isocyanate-exposed workers was 64% indicated that 64% of the asthma cases occurred in the isocyanate-exposed workers are preventable through occupational health management.
Asthma* ; Asthma, Occupational ; Bias (Epidemiology) ; Cohort Studies ; Follow-Up Studies ; Korea ; National Health Programs ; Occupational Health