Effect of meteorological factors on incidence of tuberculosis: A 15-year retrospective study based on Chinese medicine theory of five circuits and six qi / 中国结合医学杂志

<p><b>OBJECTIVE</b>To analyze the correlations between the incidence of tuberculosis and meteorological factors over the same period and previous periods including 1, 2 and 3 years ago, defined according to the Chinese medicine theory of five circuits (Wu Yun) and six qi, to establish medical-meteorological forecast models for the Beijing area of China.</p><p><b>METHODS</b>Data regarding the incidence of tuberculosis between 1990 and 2004 were obtained from the Beijing Center for Disease Control and Prevention, and the data regarding the meteorological factors (including daily average temperatures, wind speeds, precipitations, relative humidities, vapor pressures and low cloud covers) between 1987 and 2004 were collected from the Beijing Meteorological Observatory and analyzed. Descriptive statistics and a back-propagation artificial neural network were adopted to analyze the data.</p><p><b>RESULTS</b>There were significant correlations between the incidence of tuberculosis and the meteorological factors in the corresponding year and previous years. Among these correlations, wind speed was the factor with the strongest influence on tuberculosis (the standardized significance was 100%). Additionally, all prediction models would successfully established, suggesting the use of a collection of meteorological factors spanning from three years ago to the present is superior to the use of single data.</p><p><b>CONCLUSIONS</b>The incidence of tuberculosis in Beijing area is correlated to meteorological factors in the current year and previous years, which verifies the practicality of the theory of five circuits and six qi.</p>

The Incidence of Hypertension in Beijing Region Based on Yun-qi Theory: an Exploratory Research / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To explore the scientificity of Yunqi theory based on incidence of disease related recognitions such as year evolutive phase, host climatic qi, six climatic factors, celestial manager qi, qi in the earth by analyzing data of hypertension incidence.</p><p><b>METHODS</b>A total of 1,265 inpatients with confirmed first diagnosis as hypertension were recruited at Dongzhimen Hospital, Beijing University of Chinese Medicine from February 4, 1999 to February 4, 2011. Each period (including year evolutive phase, host climatic qi, guest climatic qi) was deducted based on Yun-qi theory. Their ratios of different phases and qi in the total number of hypertension inpatients number were calculated and statistically tested.</p><p><b>RESULTS</b>There was statistical difference in ratios at year evolutive phase, celestial manager qi, and qi in the earth (P < 0.05).</p><p><b>CONCLUSION</b>The incidence of hypertension has certain difference in each period, which is consistent with Yun-qi theory.</p>