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. 2011 Sep 21;141(11):1969–1974. doi: 10.3945/jn.111.143339

TABLE 3.

RR of incident diabetes in postmenopausal women by quintile of total dairy product intake

Quintiles of intake
Quintile 1 Quintile 2 Quintile 3 Quintile 4 Quintile 5 P-trend3
n 17,894 16,032 16,051 16,047 16,049
Person years 133,432 120,668 121,239 121,926 121,662
Diabetes cases, n (%) 968 (5.4) 807 (5.0) 724 (4.5) 701 (4.4) 746 (4.7)
Age, race, energy1 1.00 (reference) 0.87 (0.79–0.96) 0.80 (0.73–0.89) 0.76 (0.69–0.84) 0.79 (0.72–0.87) <0.0001
Multivariable model2 1.00 (reference) 0.91 (0.83–1.00) 0.85 (0.77–0.94) 0.83 (0.75–0.92) 0.90 (0.82–1.00) 0.03
Multivariable model2 + dietary glycemic load 1.00 (reference) 0.91 (0.83–1.00) 0.85 (0.77–0.94) 0.83 (0.75–0.93) 0.91 (0.82–1.00) 0.03
Multivariable model2 + dietary total fat 1.00 (reference) 0.92 (0.84–1.02) 0.87 (0.78–0.96) 0.86 (0.78–0.96) 0.96 (0.87–1.07) 0.39
Multivariable model2 + dietary fiber 1.00 (reference) 0.92 (0.83–1.01) 0.85 (0.77–0.94) 0.84 (0.75–0.93) 0.90 (0.82–1.00) 0.03
Multivariable model2 + total magnesium 1.00 (reference) 0.92 (0.83–1.01) 0.86 (0.77–0.95) 0.84 (0.76–0.94) 0.92 (0.83–1.02) 0.09
Multivariable model2 + dietary glycemic load + dietary total fat + dietary total fiber + total magnesium 1.00 (reference) 0.92 (0.83–1.01) 0.86 (0.78–0.95) 0.85 (0.76–0.95) 0.93 (0.83–1.04) 0.15
1

RR (95% CI) adjusted for age, race/ethnicity, total energy intake.

2

RR (95% CI) adjusted for age, race/ethnicity, total energy intake, income, education, smoking, alcohol intake, family history of diabetes, use of postmenopausal hormone therapy, systolic blood pressure, diastolic blood pressure, BMI, and physical activity.

3

Linear trends were tested by using the median value of each category as an ordinal variable.