Data/hora: 16/06/2024 06:19:07

Provedor de dados: 	56	
País: 	Brazil	
Título: 	Effect of smoking habits on sleep	
Autores: 	Conway,S.G.; Roizenblatt,S.S.; Palombini,L.; Castro,L.S.; Bittencourt,L.R.A.; Silva,R.S.; Tufik,S.	
Data: 	2008-08-01	
Ano: 	2008	
Palavras-chave: 	Smoking; Tobacco; Smoking cessation; Sleep; Sleep-disordered breathing.	
Resumo: 	To evaluate the effect of smoking habits on sleep, data from 1492 adults referred to the Sleep Institute were accessed and divided into 3 categories of smoking status: current, former and non-smokers. Categories of pack-years (&lt;15 and ≥15) defined smoking severity. The association of smoking status and smoking severity with sleep was analyzed for sleep parameters, especially apnea and hypopnea index (AHI) ≥5, more than 5% of total sleep time (TST) spent with oxyhemoglobin saturation (SaO2) &lt;90%, and arousal index. The arousal index was higher among current (21 ± 17) and former smokers (20 ± 17) than non-smokers (17 ± 15; P &lt; 0.04). Former smokers had a higher percent of TST at SaO2 &lt;90% than non-smokers (9 ± 18 vs 6 ± 13; P &lt; 0.04). Former smokers with pack-years ≥15 compared to &lt;15 exhibited higher AHI (22 ± 24 vs 16 ± 21; P &lt; 0.05) and arousal index (22 ± 19 vs 18 ± 15; P &lt; 0.05). Current smokers with pack-years ≥15 compared to &lt;15 exhibited higher arousal index (23 ± 18 vs 18 ± 16; P &lt; 0.05) and percent of TST at SaO2 &lt;90% (11 ± 17 vs 6 ± 13; P &lt; 0.05). Smoking status and pack-years were not associated with AHI ≥5 on logistic regression analysis, but current smokers with pack-years ≥15 were 1.9 times more likely to spend more than 5% of TST at SaO2 &lt;90% than non-smokers (95%CI = 1.21-2.97; P = 0.005). The variability of arousal index was influenced by gender, AHI and current smokers with pack-years ≥15 (all P &lt; 0.01). Smoking habits seem to be associated with arousal and oxyhemoglobin desaturation during sleep, but not with AHI. The effect was more pronounced in current than former smokers.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000800014	
Editor: 	Associação Brasileira de Divulgação Científica	
Relação: 	10.1590/S0100-879X2008000800014	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Medical and Biological Research  v.41 n.8 2008	
Fonte: 	info:eu-repo/semantics/openAccess