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第三章 定性资料的统计描述 PowerPoint PPT Presentation


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第三章 定性资料的统计描述. 定性变量的分布特征 医学人口统计常用指标 疾病统计常用指标 动态数列及其分析指标. 第一节 定性变量的分布特征. 定性资料的频数分布 常用的相对数指标 应用相对数应注意的事项. 一、定性资料的频数分布 清点不同类别的频数、计算每一类别所占的比重,列于统计表中,即可反映一个定性变量的频数(频率)分布。 表 3-1 某医院 2001 年住院病人 5 类疾病的死亡情况. 构成比:定性资料中某组成部分的观察单位数占同一事物各组成部分的观察单位总数的比重。 公式 :. 二、常用的相对数指标

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第三章 定性资料的统计描述

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3-1 20015


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:


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1.

0~1K


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2.


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3-3503112785925.4596

0.47%


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3.

AB

AB


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1.

2.

3.


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4.

1

2

5.


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census

1.

2.

3.


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1.population size

2.

1dependency ratio15~641465


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2sex ratio

3-2


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1.

2.

1

(Crude death rate CDR)(mortality rate)


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(Infant mortality rate IMR)

1


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neonatal mortality rateNMR28

post- neonatal mortality ratePNMR 281


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perinatal mortality

287


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5(child mortality under age 5)


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(maternal mortality rate)


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2

proportionate mortality rate, PMRproportion of dying of a specific cause


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1.

(1)crude birth rateCBR


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2general fertility rate,GFR


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3age-specific fertility rate,ASFR


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4total fertility rate,TFR


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5life-time fertility rate,LTFR


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2.

1natural increase rate, NIRNIR=CBR-CDR

2gross reproduction rate, GRR


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3net reproduction rate, NRR

4replacement level NRR =1.0 NRR =1.0 NRR >1.0 NRR <1.0


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1.

2.

3.


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1.

2.

1.incidence rate, IR

2.prevalence rate, PR


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3.cure rate

4.survival rate


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(Dynamic series)


3 3 1980 1989

3-3 1980-1989


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1

2

=-1


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3

=-1


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