. Author manuscript; available in PMC: 2012 Oct 22.

Published in final edited form as: Hum Genet. 2005 Nov 5;118(5):626–639. doi: 10.1007/s00439-005-0080-2

Table 4.

Association of asthma-related traits with 30 ancestry informative markers in the SAGE subjects.

	Count of positives ^‡ (P value < 0.05) ^*

Trait	No adjustment	w/covariates adjustment, but w/o IAEs adjustment ^**	w/covariates and IAEs adjustment
Disease status	0	0	0
Asthma severity	1	0	1
Pre-FEV₁	3	3	2
Pre-FEV₁/FVC	1	1	1
Pre- FEF_25-75	1	2	2
Δ FEV₁	2	2	2
Δ FEV₁/FVC	1	0	0
Δ FEF_25-75	0	0	0
IgE	2	2	2

NOTE:

^‡

Under 5% type I error rate (P = 0.05), counts of expected false positives are 1.5 markers.

Analyses were carried out by using multiple regression analysis.

^**

Covariates included in the analyses are age, gender, SES, asthma duration, regular use of asthma medication and BMI.