Table 2.

Median Pearson correlations for dairy products and nutrients across all studies included in the ovarian cancer analyses in the Pooling Project of Prospective Studies of Diet and Cancer

LactoseTotal milkWhole milkLow-fat milkHard cheeseCottage cheeseYogurtIce creamDietary calciumTotal calciumDietary vitamin DTotal vitamin D
Lactose1.000.830.210.67−0.080.080.180.020.900.630.830.40
Total milk1.000.360.840.030.080.070.030.770.540.710.34
Whole milk1.00−0.190.030.00−0.020.060.140.030.130.04
Low-fat milk1.000.010.090.070.010.690.470.680.33
Hard cheese1.000.090.040.090.170.08−0.10−0.04
Cottage cheese1.000.150.030.140.100.040.04
Yogurt1.000.000.280.230.170.13
Ice cream1.00−0.01−0.01−0.02−0.02
Dietary calcium1.000.700.790.39
Total calcium1.000.500.47
Dietary vitamin D1.000.47
Total vitamin D1.00
  • NOTE: Median correlation value was calculated over all studies that measured that dairy food or nutrient. Studies that did not measure that particular food or nutrient were excluded from that specific analysis. For whole milk, New York State Cohort was excluded; for low-fat milk, New York State Cohort was excluded; for hard cheese, New York State Cohort was excluded; for cottage cheese, Cancer Prevention Study II Nutrition Cohort, New York State Cohort, and Swedish Mammography Cohort were excluded; for yogurt, Adventist Health Study, Breast Cancer Detection Demonstration Project Follow-up Study, and New York State Cohort were excluded; for ice cream, Adventist Health Study, the Netherlands Cohort Study, and New York State Cohort were excluded; for total calcium (dietary + supplemental), Canadian National Breast Screening Study, the Netherlands Cohort Study, and Swedish Mammography Cohort were excluded; for dietary vitamin D, Adventist Health Study, Canadian National Breast Screening Study, the Netherlands Cohort Study, and New York University Women's Health Study were excluded; and for total vitamin D, Adventist Health Study, Canadian National Breast Screening Study, the Netherlands Cohort Study, New York University Women's Health Study, and Swedish Mammography Cohort were excluded. All studies measured lactose, total milk, and dietary calcium.