RESUMO
To determine the effect of air pollution in Mexico City on respiratory health, patient visits for upper respiratory tract infections were monitored in five clinics. Levels of ozone, nitrogen dioxide, carbon monoxide, and sulfur dioxide, and climatological variables were collected. Correlations of filtered data revealed an association between NO2 and O3 with an increase in visits to clinics because of respiratory problems. Autoregressive analysis indicated that pollutant levels/respiratory visits associations remained significant even after simultaneous inclusion of temperature, suggesting that air pollution was associated with 10 to 16% of the clinic visits. The relative risk indicated that high levels of O3 and NO2 could increase the total number of clinic visits to between 19 and 43% above average. The other pollutants and the control group did not demonstrate significant associations.
Assuntos
Poluição do Ar/efeitos adversos , Doenças Respiratórias/etiologia , Adolescente , Adulto , Fatores Etários , Idoso , Criança , Pré-Escolar , Humanos , Lactente , Recém-Nascido , Conceitos Meteorológicos , México/epidemiologia , Pessoa de Meia-Idade , Dióxido de Nitrogênio/efeitos adversos , Ambulatório Hospitalar , Ozônio/efeitos adversos , Análise de Regressão , Doenças Respiratórias/epidemiologia , RiscoRESUMO
The present trial has been conducted in order to determine familia aggregation and the relationship between high blood pressure, inheritance and environmental factors. We studied 108 subjects (36 high blood pressure patients, 36 controls and 36 first degree relatives) ranging in age from 21 to 55 years. This case-control study was undertaken to determine risk factors. Multivariance analysis with logistic regression was carried out. Our results showed hereditary factors in 73.8% of the cases. Being the main gene autosomal recessive. Thus the main factor for high pressure is hereditary predisposition. Others factor are, body mass index and the coefficient waist-hip. We found no correlation with serum lipids.