Sleep-disordered breathing and asthma: evidence from a large multicentric epidemiological study in China

Li, Liwen; Xu, Zhiwei; Jin, Xingming; Yan, Chonghuai; Jiang, Fan; Tong, Shilu; Shen, Xiaoming; Li, Shenghui

doi:10.1186/s12931-015-0215-5

Respiratory Research

Table 3 Summary of studies assessing the association of SDB and asthma and its severity risk

From: Sleep-disordered breathing and asthma: evidence from a large multicentric epidemiological study in China

First author, year	Country	Ethnicity	Study design	Response rate	Size	Male (%)	Age (y)	Risk factor	Outcome	OR [95%CI]
Teodorescu, 2012 [37]	USA	African 6%	Cross-sectional	93%	752	33%	47 ± 14	High OSA risk	Persistent daytime asthma	1.96 [1.31, 2.94]
		Caucasians 91%							Persistent nighttime asthma	1.97 [1.32, 2.94]
		Others 3%						OSA	Persistent daytime asthma	2.08 [1.13, 3.82]
									Persistent nighttime asthma	1.48 [0.82, 2.69]
Ross, 2012 [36]	USA	African/Caucasians	Cross-sectional	54%	108	67.60%	9.1 ± 3.4	SDB	Asthma severity	3.62 [1.26, 5.40]
Lukrafka, 2010 [20]	Brazil	Caucasians	Cross-sectional	93.50%	575	49.80%	Range 12-19	Snoring	Asthma	4.50 [3.30, 6.20]
Teodorescu, 2009 [35]	USA	Caucasians	Cross-sectional	93%	244	39%	46 ± 13	Habitual snoring	Asthma	2.16 [1.13, 4.10]
Kozyrskyj, 2009 [19]	Australia	Caucasians	Cohort study	83.40%	1,999	NA	Range 11-14	Habitual snoring	Persistent asthma (6 yrs)	1.51 [1.04, 2.20]
					1,365				Non-atopic asthma (6 yrs)	2.78 [1.51, 5.09]
					1,693				Persistent asthma (14 yrs)	1.74 [1.05, 2.90]
					1,390				Non-atopic asthma (14 yrs)	2.29 [1.11, 4.71]
Jamrozik, 2009 [34]	Australia	Caucasians	Cohort study	47.30%	1,554	44.5%	Range 20-69	Snore	Newly diagnosed asthma	1.20 [0.90, 1.70]
								Habitual snoring	Newly diagnosed asthma	2.40 [1.40, 4.20]
Karachaliou, 2007 [33]	Greece	Caucasians	Cross-sectional	NA	1,501	59.40%	Range 19-90	Snoring	Asthma	1.01 [0.76, 1.35]
ten Brinke, 2005 [32]	Netherlands	Caucasians	Cross-sectional	46.30%	136	27%	41.5 ± 14.1	OSA	Difficult-to-treat asthma	3.40 [1.20, 10.4]
Ekici, 2005 [31]	Turkey	Caucasians	Cross-sectional	97.70%	10,224	47.50%	44.1 ± 11.6	Snoring	Asthma	1.70 [1.50, 1.80]
Gunnbjornsdottir, 2004 [18]	Denmark	Caucasians	Cross-sectional	74.30%	16,191	47%	39.6 ± 7.1	Snoring	Asthma	1.80 [1.34, 2.42]
Lu, 2003 [30]	Australia	Caucasians	Cross-sectional	61%	974	53%	Range 2-5	Snoring	Asthma	2.00 [1.30, 3.10]
Vir, 1997 [29]	India	Asians	Case–control	NA	60	43.30%	Range 18-28	Snoring	Asthma	2.36 [0.63, 4.92]

OR, odds ratio; CI, confidence interval.

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