文档介绍：Chapter 10 Statistical Table & Statistical Graph
Statistical tables and graphs are two kinds of forms which make from point, line, area and number.
They can show the information of data directly. So they are widely used in medical practice.
Statistical Tables and Graphs
§1 Statistical Tables
Principles of Making Tables
The main contents must be emphasized, simple and understood easily.
Primary and secondary contents as well as arrangement must be clear.
Construction of statistical table
Title: generalize the contents, including time and site. The title is located on the top of the table and a sequence No. is on the left of the title.
Horizontal item: indicate the subjects investigated, usually located in the left of the table.
Vertical item: indicate statistical index including the units, usually located in the right and upper of the table.
Lines (horizontal only):
Top and bottom (dark): define the range of table
Others (light): separate items and figures.
Figures: require to use Arabian number in the statistical table and the decimal must be accordant. The empty cells can’t be allowed.
Notes: usually use star mark “” to express notes, and the mark “” usually put on the bottom of the table.
三、 Types of Statistical tables
1. Simple table: One variable only
example 10-1 the effect of curing illness by drug A and drug B was shown in table 10-1. There is a variable, so it is a simple table.
Table 10-1 the effect of curing illness by drug A and drug B
How pare the effect of curing illness by drug A and drug B?
2. Combinative table: More than 2 variables
Table 10-2 the result of HBsAg of persons at different age group in city or country at certain area in certain year
Please point out respectively the incidence rate and percentage of persons in city and country at 25~ group