Table 3. Degree of relationship between the family member who had BU and the study subjects.

Variables	Univariate analysis
(BU history in)	OR; 95% CI	P value
Grandparents	7.36; 0.85–64.08	0.06
Parents (father/mother or uncle/aunt)	1.05; 0.37–2.95	0.93
Collateral (brother/sister or cousin)	1.08; 0.42–2.80	0.87
Progeny (son/daughter or nephew/niece)	0.46; 0.05–4.51	0.50

OR = Odds Ratio.

(Total cases/Total controls = 48/60).