Investigations Of Serum Reference Value Of Iron,Calcium In Healthy Adults Of Jinan And Study Of The Effects Of Some Environmental And Social Behavior Factors

1.Objectives1.1 Surveys the normal serum iron and calcium concentration of the crowd in Jinan, in order to establish normal population Jinan serum reference value, as evaluation indicators of citizen health status of the city of Jinan.1.2 Explore a range of possible health hazards factors, and reveal their tendency that harm may arise in order to promote public health.1.3 Discuss three main parameters in the samples microwave digestion : heating time, holding time and digestion temperature, and establish the optimal digestion conditions1.4 Explore the sensitivity, accuracy of detection, the and stability of sample preservation methods.1.5 Analysis of the iron and calcium in the natural environment, including vegetables, fruits, grain, meat that the Jinan City residents eat, and soil of Jinan resident area.2. Methods2.1 Combined with the previous survey and epidemiological investigation and research methods of questionnaire design, carried out the design of the questionnaire related to conduct surveys and researches.2.2 The use of microwave digestion of samples - flame atomic absorption spectrometry for serum iron, calcium determination.2.3 Through statistical analysis software, on the determination of the results stratified according to different factors analysis, to explore the impact of serum iron, calcium situation.2.4 Wet digestion - Flame Atomic Absorption Spectrometry Determination of vegetables, fruits, grain, meat, and the living environment of the soil content of iron and calcium.3. Results3.1 The reference value of serum iron of Jinan resident is 0.91～1.73mg/L, and that of serum calcium is 67.00～154.33mg/L.3.2 Gender, age, smoking, drinking, residence time, level of education, income level, Exercise, Sleep quality and sleep time all have some function on serum iron and calcium.3.3 In the vegetables, fruits, grain and meat of Jinan, the concentrations of iron are low and the concentrations of calcium are high.4. Conclusion4.1 Comparing with other residential area, the residents of Jinan have a lower level of serum iron and higher level of serum calcium.4.2 Serum iron: between male and female, the concentration is higher in men; among different age groups, the level goes down at first, and then go higher after 50; smokers are lower than the non-smokers; drinkers are higher than non-drinkers; as the resident time goes, serum iron is different between male and female, and changes irregularly, the level is approach to the normal level in long resident time group; the concentration is different among groups of levels of education, and the well-educated ones most have more healthy level; middle income level is the most close to the normal level of serum iron of Jinan resident; as a fact, the more exercise taken, the better status of serum iron they have; those who don't sleep well, have a much higher level of serum iron, comparing to those sleep well having normal level of serum iron; the concentration is low among those sleep less than 7 hours, while that is about normal level among those sleep more than 8 hours.4.3 Serum calcium: serum calcium of male is higher than female; the concentration of calcium goes up and down alternatively among age groups; the level of smokers is lower than non-smokers; the concentration of calcium of drinker are more approach to the reference value, and is more healthy; as the resident time goes, the level gradually come to meet normal level of Jinan residents; the concentrations are different among groups of levels of education, and those well-educated have more healthy level of serum calcium; the level of middle income level is very close to the normal concentration of Jinan residents, while male have a higher level than female in the high income level group; those take more exercise have higher level than those didn't; those having better sleep quality have a higher level than those who don't sleep well, and are close to normal status of Jinan; residents who sleep less than 7 hours is low in serum calcium, and those who sleep more than 8 hours have a higher and more healthy level.4.4 Research of environmental factor illustrate that the status of Jinan residents' low serum iron and high serum calcium may result from the food supplied for Jinan residents, and also the earth's content of Jinan which is low of iron and high of calcium comparing to other area.5.The main features in this thesis5.1. The reference value of serum iron and calcium of healthy adults of Jinan City, is surveyed and described respectively according to gender, age differences.5.2. Social and behavior factors of Jinan residents are investigated and classified, and in accordance with literature, the causes have been analyzed and some suggestions are recommended to form a healthy lifestyle.5.3. The environmental factors which are related to health have been investigated, and combined with serum survey, some suggestion have been given to help Jinan residents form a reasonable diet.