Dietary Calcium and Blood Pressure in a Native American Population
K.M. Venkat Narayan, MD,
Robert L. Hanson, MD,
Cynthia J. Smith, PhD,
Robert G. Nelson, MD,
Stacey B. Gyenizse, RD,
David J. Pettitt, MD and
William C. Knowler, MD
Diabetes and Arthritis Epidemiology Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona
Fig. 1. Prevalence of hypertension by tertile groups of dietary calcium for different age groups. Calcium measured by 24-hour recall and HTN defined as SBP140 mmHg or DBP90 mmHg or drug treatment.
Fig. 2. Age-sex-BMI-energy-adjusted mean (S.E.) systolic and diastolic blood pressures by tertile groups of dietary calcium. Subjects taking anti-hypertensive drugs excluded.
Fig. 3. Age-sex-BMI-energy-adjusted mean (S.E.) systolic and diastolic blood pressures by tertile groups of dietary calcium in nondiabetic and diabetic subjects. Subjects taking anti-hypertensive drugs excluded.