Effect of asthma severity on symptom perception in childhood asthma
Braz. j. med. biol. res
;
35(3): 319-327, Mar. 2002. ilus, tab
Artículo
en Inglés
| LILACS
| ID: lil-304670
ABSTRACT
Individual ability to perceive airway obstruction varies substantially. The factors influencing the perception of asthma are probably numerous and not well established in children. The present study was designed to examine the influence of asthma severity, use of preventive medication, age and gender on the association between respiratory symptoms (RS) and peak expiratory flow (PEF) rates in asthmatic children. We followed 92 asthmatic children, aged 6 to 16 years, for five months. Symptom scores were recorded daily and PEF was measured twice a day. The correlations among variables at the within-person level over time were analyzed for each child and for the pooled data by multivariate analysis. After pooling the data, there was a significant (P<0.05) correlation between each symptom and PEF; 60 percent of the children were accurate perceivers (defined by a statistically significant correlation between symptoms and PEF across time) for diurnal symptoms and 37 percent for nocturnal symptoms. The accuracy of perception was independent of asthma severity, age, gender or the use of preventive medication. Symptom perception is inaccurate in a substantial number of asthmatic children, independently of clinical severity, age, gender or use of preventive medication. It is not clear why some asthmatic patients are capable of accurately perceiving the severity of airway obstruction while others are not
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Asma
/
Obstrucción de las Vías Aéreas
Tipo de estudio:
Estudio diagnóstico
/
Estudio observacional
/
Estudio pronóstico
/
Factores de riesgo
Límite:
Adolescente
/
Niño
/
Femenino
/
Humanos
/
Masculino
Idioma:
Inglés
Revista:
Braz. j. med. biol. res
Asunto de la revista:
Biologia
/
Medicina
Año:
2002
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Hospital Darcy Vargas/BR
/
Universidade de Säo Paulo/BR
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