Dietary calcium and blood pressure: a meta-analysis of randomized clinical trials

Article Abstract:

Dietary calcium does not appear to offer sufficient benefits for controlling or preventing hypertension to make it worthwhile recommending for this purpose. Researchers analyzed 26 trials in which participants were randomly assigned to calcium supplementation or not in order to evaluate its effects on blood pressure. The effect varied from trial to trial with many showing no effect. Calcium dose and trial duration did not make a difference. When the data were pooled, calcium supplementation reduced the average blood pressure slightly in both participants with high blood pressure and participants whose blood pressure was normal. The effect was greater in older persons and in women. Nonetheless, in no case was it large enough or consistent enough to warrant recommending calcium supplementation to help control or prevent hypertension.

Calcium (Nutrient), Calcium, Dietary

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Using the Berlin Questionnaire To Identify Patients at Risk for the Sleep Apnea Syndrome

Article Abstract:

The Berlin Questionnaire can be a useful method of identifying patients who are likely to have sleep apnea, a condition which often is undiagnosed on the primary care level. Positive registration on the questionnaire can then be followed by a self-administered sleep study. The survey was conducted with 744 adults, establishing the presence and frequency of snoring, waketime sleepiness or fatigue, and a history of obesity or hypertension. Patients with continuing symptoms in any two of these three areas were considered to be at high risk for sleep apnea. Of the 744 respondents, 279 (37.5%) were in a high-risk group.

Diagnosis, Obesity, Fatigue, Sleep apnea syndromes, Sleep apnea, Snoring

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Effects of blood pressure measurments on mortality

Article Abstract:

Increasing systolic blood pressure increases the risk of premature death, according to a study of 7,830 people published in 2003. In elderly people, very low diastolic blood pressure and high diastolic blood pressure increase the risk of death. The effect of pulse pressure on death varies and cannot be used to predict a patient's risk of premature death. Systolic blood pressure is the first blood pressure number, diastolic blood pressure is the second number, and pulse pressure is the difference between the two.

Mortality, Blood pressure, Cookery for hypertensives

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