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Vol. 35. Issue 8.
Pages 481-486 (September 2011)
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Vol. 35. Issue 8.
Pages 481-486 (September 2011)
Original article
DOI: 10.1016/j.acuroe.2011.03.008
Climate and epidemiological characteristics of renal colic attendances in an urban setting in Spain
Características climáticas y epidemiológicas asociadas al cólico renal en una zona urbana en España
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M. Lujána,??
Corresponding author
mlujang@salud.madrid.org

Corresponding author.
, M.T. Sánchezb, J. Turoa, C. Pascuala, V. Chivaa, C. Martína, J. Torresc
a Unidad de Urología, Hospital Infanta Cristina, Parla, Madrid, Spain
b Unidad de Control de Gestión, Hospital Infanta Cristina, Parla, Madrid, Spain
c Servicio de Urgencias, Hospital Infanta Cristina, Parla, Madrid, Spain
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Tables (5)
Table 1. Epidemiological characteristics of the patients studied with respect to age, sex, and previous history of renal colic (RC).
Table 2. Number of episodes of renal colic (RC) regarding the month, restricted to the year 2009 (Chi-square test; p<0.025).
Table 3. Number of episodes of renal colic (RC) regarding the season, restricted to the year 2009 (Chi-square test; p<0.025).
Table 4. Relation between the monthly number of episodes of renal colic (RC) and the climatic parameters studied.
Table 5. Relation between the number of episodes of renal colic (RC) by season and climatic parameters studied (mean maximum temperature and mean relative humidity).
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Abstract
Objectives

To address the real incidence of RC episodes in our setting and its relationship with several epidemiological, seasonal and climatic factors.

Methods

We analyzed 156,687 attendances in the emergency unit of Hospital Infanta Cristina (Parla, Madrid, Spain), from the opening of the unit in 07/04/2008 to the date of analysis (28/03/2010). Date of birth, sex, history of previous urinary lithiasis episodes, main cause and date of attendance were collected. Daily climate parameters (maximum daily temperature and percent relative humidity) were recorded.

Results

A total number of 1866 RC episodes (1.19% of all attendances) were recorded during the study period. Age ranged from 15 to 94 years, median 39. RC episodes were more prevalent in male population (58.4% vs. 41.6% in females respectively, p<0.001). No differences were observed with regard to previous history of RC. A modest but significant rise in RC incidence was observed during summer and autumn. No significant correlation was observed between monthly or seasonal number of RC attendances and the climatic parameters studied.

Conclusions

RC incidence in our setting is similar to the previously reported in the literature. A modest but significant higher incidence of renal colic episodes were observed during summer and autumn seasons, although no significant relationship was attributed to temperature and humidity values. Absence of dramatic seasonal changes in incidence can be explained by the “non-extreme” weather conditions in the studied setting.

Keywords:
Renal colic
Emergency service
Hospital
Climate
Resumen
Objetivos

Determinar la incidencia real de los episodios de cólico renal (CR) en nuestro ámbito, así como su relación con varios factores epidemiológicos, estacionales y climáticos.

Métodos

Hemos analizado los registros de 156.687 atenciones en el Servicio de Urgencias del Hospital Infanta Cristina (Parla, Madrid, España), desde su apertura el 7 de abril de 2008 hasta la fecha del análisis (28 de marzo de 2010). Se registraron la fecha de nacimiento, el sexo, la historia de episodios previos de CR, el motivo de consulta y la fecha de la atención. Se obtuvieron también los valores diarios de algunos parámetros climáticos (temperatura máxima y humedad relativa).

Resultados

Se registraron un total de 1.866 episodios de CR (1,19% de todas las atenciones). La edad osciló entre los 15 y los 94 años, con una mediana de 39. Los episodios de CR fueron más prevalentes en la población masculina (58,4% vs. 41,6% en la femenina, respectivamente, p<0,001). No se observaron diferencias con respecto a la historia previa de CR. Se observó un modesto pero significativo aumento en la incidencia de CR durante las estaciones de verano y otoño. No existió correlación significativa entre el número de atenciones por CR y los parámetros climáticos estudiados.

Conclusiones

La incidencia de CR en nuestro ambiente es similar a la existente en la literatura. Se registró un aumento modesto pero significativo de la incidencia durante el verano y otoño, aunque no se observó relación significativa con los valores climáticos de temperatura y humedad. La ausencia de cambios estacionales importantes en la incidencia de CR puede explicarse por las características meteorológicas “no-extremas” del ambiente estudiado.

Palabras clave:
Cólico renal
Servicio de Urgencias
Hospital
Climatología

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