Table 4.

OR (95% CI) of breast cancer stratified by quartiles of vitamin B12 intake according to quartiles of folate intake

Quartiles of vitamin B12 intakeQuartiles of folate intakeAge-adjustedMultivariable-adjusted*
111.001.00
20.65 (0.37-1.13)0.78 (0.43-1.41)
30.60 (0.34-1.04)0.76 (0.42-1.39)
40.87 (0.53-1.44)0.91 (0.53-1.15)
P values for trend0.510.70
211.001.00
20.86 (0.50-1.47)0.86 (0.49-1.53)
30.97 (0.55-1.72)1.03 (0.57-1.88)
40.96 (0.55-1.68)0.75 (0.41-1.37)
P values for trend0.990.45
311.001.00
20.66 (0.37-1.15)0.66 (0.37-1.20)
30.57 (0.31-1.04)0.58 (0.31-1.08)
40.33 (0.17-0.66)0.29 (0.14-0.61)
P values for trend0.0020.001
411.001.00
20.44 (0.22-0.90)0.52 (0.25-1.10)
30.30 (0.15-0.62)0.36 (0.17-0.77)
40.35 (0.17-0.72)0.36 (0.17-0.79)
P values for trend0.0020.006
  • * Adjusted for age, socioeconomic status, family breast cancer, menopausal status, parity, availability of BMI, total caloric intake, dietary fiber, carbohydrate intake, and polyunsaturated fat intake.