Table 3. Multiple regression analysis between clinical co-variables and TLR4-299 genotype^* (dependent variable).

Co-variable	Adjusted OR [95%CI]	p value
Gestational age (wk)	1.12 [0.77 to 1.63]	0.56
Birth weight (g)	1.00 [1.00 to 1.00]	0.78
Gender (male or female)	0.95 [0.36 to 2.49]	0.92
Ethnicity, (Caucasian or not)	1.05 [0.39 to 2.81]	0.93
Recruitment Centre (A or B)	0.50 [0.19 to 1.32]	0.16
BPD (none, mild, moderate or severe)	2.15 [1.17 to 3.97]	0.014

^*Results are shown for combined heterozygous/rare homozygous genotypes in binary regression. Significance was also comparable using all three genotypes (Asp/Asp, Asp/Gly and Gly/Gly) in regression models using BPD (p = 0.016) as the dependent variable.