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. 2011 May 21:10:48.
doi: 10.1186/1476-069X-10-48.

Respiratory and mental health effects of wildfires: an ecological study in Galician municipalities (north-west Spain)

Francisco Caamano-Isorna  1 , Adolfo Figueiras, Isabel Sastre, Agustín Montes-Martínez, Margarita Taracido, María Piñeiro-Lamas
Affiliations

Respiratory and mental health effects of wildfires: an ecological study in Galician municipalities (north-west Spain)

Francisco Caamano-Isorna et al. Environ Health. .

Abstract

Background: During the summer of 2006, a wave of wildfires struck Galicia (north-west Spain), giving rise to a disaster situation in which a great deal of the territory was destroyed. Unlike other occasions, the wildfires in this case also threatened farms, houses and even human lives, with the result that the perception of disaster and helplessness was the most acute experienced in recent years. This study sought to analyse the respiratory and mental health effects of the August-2006 fires, using consumption of anxiolytics-hypnotics and drugs for obstructive airway diseases as indicators.

Methods: We conducted an analytical, ecological geographical- and temporal-cluster study, using municipality-month as the study unit. The independent variable was exposure to wildfires in August 2006, with municipalities thus being classified into the following three categories: no exposure; medium exposure; and high exposure. Dependent variables were: (1) anxiolytics-hypnotics; and (2) drugs for obstructive airway diseases consumption. These variables were calculated for the two 12-month periods before and after August 2006. Additive models for time series were used for statistical analysis purposes.

Results: The results revealed a higher consumption of drugs for obstructive airway diseases among pensioners during the months following the wildfires, in municipalities affected versus those unaffected by fire. In terms of consumption of anxiolytics-hypnotics, the results showed a significant increase among men among men overall -pensioners and non-pensioners- in fire-affected municipalities.

Conclusions: Our study indicates that wildfires have a significant effect on population health. The coherence of these results suggests that drug utilisation research is a useful tool for studying morbidity associated with environmental incidents.

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Figures

Figure 1
Figure 1
Wildfires in north-west Spain in August 2006, and satellite photograph.
Figure 2
Figure 2
Consumption of anxiolytics-hypnotics (N05B & NO5C) and drugs for obstructive airway diseases (R03): trends pre- and post-wildfires.
See this image and copyright information in PMC

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