中国成人主要慢性病调查

The Report of the Chinese Adult Health Survey Abstract:

According to the data of the Chinese economic, population, nutrition, and health survey (2006 adult) questionnaire). We find that the entire health condition of Chinese adults is OK. There is no difference in the age of people between the health status. Looking into the several chronic diseases, we can find that some diseases have relationship with the age of people, and get some detailed information about the each chronic disease.

Background:

With the increase of the economic, people become more and more wealth. But we gradually find that some chronic disease become more and more widespread such as hypertension, mellitus, and so on. In this case, I want to find that whether the true result is like that we observed. The data come from the Chinese economic, population, nutrition, and health survey (2006 adult questionnaire). The questionnaire consists of several components, which is geographic, work activities, household chores and child care, tobacco, tea, water, caffeine, alcohol, and soft drink consumption, current functioning, use of health service, health status, diet and activity acknowledge ever-married women under age 52,and physical measurement. Of course, I can not use all of the data. I only choose several component of the survey to find the result.

1 The entire phenomena of the Chinese adult health.

We use the data from the component of health status. The first is people’s subjective evaluation about their health status compared to their same ages. The answer has five chooses, which are 1 excellent, 2 good, 3 faire, 4 poor and 9 unknown. Through analyzing the data, we can get the following result.

chooses frequency percent

excellent 1182 12.09

good 4522 46.25

fair 3258 33.22

poor 750 7.67

unknown 66 0.67

We can see that more than half of the people feel that their health is as least as good as other people in their age. Maybe the result is not so believable because people always ignore the ailments, and think that they are healthy.

Then we come to the second question. During the past 3 months have you had any difficulty carrying out your daily?

The answers are yes, no and unknown. The follow is the result (that does not include the unknown).

We can see that people say “fair” in the question 1 take almost the same portion of the people say “poor” in the question 1. We can guess that people in the question may lie.

You may want to know that whether there is difference between the people’healthy condition and the category of whether they the disease influence their life. In this case, I use the chi-squared test of a contingency table.

The p-value is 0.

So we can conclude that there is enough evidence to infer that there is not difference in people’s age between people health condition.

Then we look the survey result of several chronic diseases.

2 The result of high blood pressure.

2.1 The basic condition of hypertension among Chinese adults.

Hypertension (HTN) or high blood pressure, sometimes called arterial hypertension, is a chronic medical condition in which the blood pressure in the arteries is elevated. This requires the heart to work harder than normal to circulate

blood through the blood vessel. In 2006, almost 10.06% adult have the high blood

pressure among Chinese adults, and the average time of people since they get the disease till now is 8.47 year.

The little information sounds like a little amazing, then we go on some work about more detailed information.

2.2 The relationship between the time of people who have the high blood

pressure and the age of the people.

. corr u23 a3a

(obs=868)

u23 a3a

u23 1.0000

a3a 0.2741 1.0000

The regression plot

We can see that the relationship is positively related.

It means that if the person is older and he may be in terms of the high blood disease longer time. Maybe you will say that it is obvious, but we can conjecture that most people get high blood pressure when they are not old. It is a pity that we don’t have the date about when people get high blood pressure. If have, we can test the prediction.

2.3 The average age of people who take anti-hypertension and who not take anti-hypertension among the people who have high blood pressure.

. ttest var3= var1,unpaired unequal

Two-sample t test with unequal variances

Variable Obs Mean Std. Err. Std. Dev. [95% Conf. Interval]

var3 226 59.25221 .8343489 12.54301 57.60807 60.89635 var1 747 62.63989 .4090324 11.17939 61.8369 63.44288 combined 973 61.85303 .3716395 11.59253 61.12372 62.58234 diff -3.387681 .9292178 -5.215416 -1.559945 diff = mean(var3) - mean(var1) t = -3.6457 Ho: diff = 0 Satterthwaite's degrees of freedom = 340.221 Ha: diff < 0 Ha: diff != 0 Ha: diff > 0 Pr(T < t) = 0.0002 Pr(|T| > |t|) = 0.0003 Pr(T > t) = 0.9998

We can find that the average age of people who take anti-hypertension is 59.25 and the average is 62.64. The p-value is 0.0002. so we can conclude that there is enough evidence to infer that the average age of people who not take

anti-hypertension is lower than that of people who take anti-hypertension.

2.4 The relationship between the alcohol consumption and whether people who

have high blood pressure.

We can summarize the frequency and use chi-squared test of a contingency table.

. tabulate u41 u22,chi2

u22（是否有高血压诊断

u41（喝酒?）

钠德剩? 0 1 Total

1 877 119 996

2 374 27 401

3 800 55 855

4 511 40 551

5 204 15 219

6 5,909 720 6,629

Total 8,675 976 9,651

Pearson chi2(5) = 33.0528 Pr = 0.000

We can conclude that there is not enough evidence to infer that the there are difference between the people whether have high blood pressure.

The result may be a little incomprehensive.We often think that the people who always drink are more easy to get high blood pressure. So I look for the material and it is said that drinking alcohol will not cause the hypertersion directly, on the contrary, drink little wine can promote the blood circulation. If so, we can understand the test result.

3 the basic condition of the diabetes

The proportion of people get diabetes is 1.79%, the proportion of people don’t get diabetes is 97.60%, and the rest is the people who don’t know whether they get the diabetes, which is 0.52%. We can see the result in visible graph.

3.1 The age of people who have diabetes whether differs the age of people who

don’t have diabetes.

Nowadays can find that more and more young people get the chronic disease, we assume that there are no differences between the people who get diabetes and don’t get diabetes.

We can find that the average of people who have diabetes is 48.78, and that of people who don’t get diabetes is 61.30. The p-value is 0. In this case , we can reject the null hypothesis and infer that the difference exists.

Now we look the box plot of the time of people when they got the diabetes.

The mean is 53.0407, the first quartile is 46, and the third quartile is 60.5. We can find the people get diabetes are a little bit young.

3.2 The analysis about the treatment of diabetes.

According to the questionnaire, we can find there are several ways people used to treat or preserve the diabetes. They are special diet, weight control, and Oral medicine, injection of insulin, Chinese traditional medicine, home remedies and Qigong

(spiritual method). The result is showed in the following graph.

m e a n o f v a r 4

c h i n

We can find that most people use the special diet to control or treat diabetes. This treatment usually applies to the type 2 diabetes. Weight control is the second way.

4 The condition and myocardial infarction and apoplexy.

The table about the proportion of people having myocardial infraction

frequency Percent cum Yes 9685 98.96% 98.96% No 61 0.62% 99.85% Unknown

41

0.42%

100.00%

The age of people who have myocardial infraction.

mean p50 age 39 41.5

The table about the proportion of people having apoplexy .

frequency Percent cum

Yes 9629 98.39% 98.39%

No 106 1.08% 99.47%

Unknown 52 0.53% 100.00%

The shortage of the report:

Through the report, you may find that all is the analysis of the data, and you may feel a little confusing. There is no sufficient conclusion about the health conditions of Chinese adults. I should look for more material maybe can find some useful result.