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. 2014 Feb 12;3(2):426–433. doi: 10.1002/cam4.201

Table 3.

The frequency of BRM polymorphisms in smokers and nonsmokers with upper aerodigestive tract cancers.

Adjusted OR (95% CI)1 cases vs. controls
BRM polymorphism Ever-smokers Nonsmokers Interaction P-value
All cancers
 Wild type (reference) 1 1 0.32
 Heterozygote (for either variant) 1.36 (0.8–2.2) 1.39 (0.7–2.6)
BRM-741 homozygote only 1.26 (0.6–3.2) 1.43 (0.9–3.9)
BRM-1321 homozygote only 1.25 (0.6–3.2) 1.35 (0.5–4.0)
BRM-741 and-1321 homozygotes 2.38 (1.3–4.4) 2.62 (1.2–5.0)
Lung cancer
 Wild type (reference) 1 1 0.55
 Heterozygote (for either variant) 1.33 (0.5–3.7) 1.36 (0.6–4.7)
BRM-741 homozygote only 1.38 (0.5–4.5) 1.42 (0.4–5.0)
BRM-1321 homozygote only 1.66 (0.9–4.7) 1.25 (0.4–5.2)
BRM-741 and-1321 homozygotes 2.40 (1.2–4.4) 2.49 (1.0–5.0)
Esophageal cancer
 Wild type (reference) 1 1 0.88
 Heterozygote (for either variant) 1.05 (0.4–3.6) 1.09 (0.3–4.1)
BRM-741 homozygote only 1.15 (0.4–4.2) 1.13 (0.3–4.8)
BRM-1321 homozygote only 1.22 (0.3–3.9) 1.00 (0.3–5.1)
BRM-741 and-1321 homozygotes 1.81 (0.6–3.0) 1.52 (0.6–4.3)
Head and neck cancer
 Wild type (reference) 1 1 0.42
 Heterozygote (for either variant) 1.41 (0.7–4.2) 1.55 (0.8–5.2)
BRM-741 homozygote only 1.51 (0.6–4.8) 1.58 (0.5–6.0)
BRM-1321 homozygote only 1.56 (0.8–5.6) 1.47 (0.6–6.3)
BRM-741 and-1321 homozygotes 2.53 (1.4–4.5) 3.15 (1.4–6.4)

BRM, Brahma; OR, odds ratio; CI, confidence interval; UADT, upper aerodigestive tract.

1

The OR was adjusted for: age, sex, smoking status, pack-years, and family history of UADT cancers.