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Journal of Chinese Integrative Medicine ›› 2009, Vol. 7 ›› Issue (8): 784-787.doi: 10.3736/jcim20090815

• Medical Statistice • Previous Articles     Next Articles

Statistical analysis using SAS software package for data of R×C contingency table （Part one）

 Liang-ping Hu, Li-xin Tao   

  1. Consulting Center of Biomedical Statistics,Academy of Military Medical Sciences,Beijing 100850,China
  • Received:2009-07-03 Accepted:2009-07-25 Online:2009-08-20 Published:2009-08-15
  • Contact: Liang-ping Hu E-mail:lphu812@sina.com

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Key words: Statistics, Medicine, Data analysis, Statistical, Qualitative data, SAS software

"

分组 n 等位基因
ε2 ε3 ε4
痰证 20 2 25 13
瘀证 79 12 123 23
痰瘀互阻证 82 15 118 31
非痰非瘀证 19 2 25 11

"

data PGM1; 15 118 31
do A=1 to 4; 2 25 11
do B=1 to 3; ;
input F @@; ods HTML;
output; PROC FREQ;
end; end; weight F;
cards; tables A*B/CHISQ;
2 25 13 run;
12 123 23 ods HTML close;

"

统计量 自由度 值 概率
卡方 6 9.736 4 0.136 2
似然比卡方 6 9.213 9 0.161 9
Mantel-Haenszel卡方 1 0.003 8 0.951 1
Phi系数 0.156 0
列联系数 0.154 2
Cramer V统计量 0.110 3

"

组别 n 皮肤
溃疡		 腕管综
合征		 筋膜间室
综合征		 关节
僵硬		 正中神
经损伤		 握力
下降
A 95 0 2 0 3 0 0
B 90 5 4 0 3 3 1
C 90 4 2 1 2 2 4

"

data PGM2; 4 2 1 2 2 4
do A=1 to 3; ;
do B=1 to 6; ods HTML;
input F @@; PROC FREQ;
output; weight F;
end; end; tables A*B/exact;
cards; run;
0 2 0 3 0 0 ods HTML close;
5 4 0 3 3 1

"

统计量 自由度 值 概率
卡方 10 12.147 9 0.275 3
似然比卡方 10 13.904 5 0.177 4
Mantel-Haenszel卡方 1 0.449 2 0.502 7
Phi系数 0.580 9
列联系数 0.502 3
Cramer V统计量 0.410 8

"

Fisher精确检验
表概率（P） 1.308×10–5
双侧Pr<=P 0.366 3

"

证型 n 皮下组织回声强度
– + ++ +++ ++++
寒湿阻络型 30 3 2 15 10 0
湿热下注型 41 5 24 6 4 2
痰凝血瘀型 36 0 1 7 12 16

"

data PGM3; data two; set PGM3;
do A=1 to 3; do I=1 TO F;
do B=1 to 5; output two;
input F @@; output; end; run;
end; end; cards; ods HTML;
3215100 PROC NPAR1WAY Wilcoxon
524642 data=two;
0171216 class A; VAR B; run;
; ods HTML close;

"

A n 秩和得分 H0假设下
的期望值		 H0假设下
的标准差		 平均秩和
1 30 1 565.00 1 620.0 140.282 557 52.166 667
2 41 1 350.50 2 214.0 151.831 394 32.939 024
3 36 2 862.50 1 944.0 147.563 215 79.513 889

"

Kruskal-Wallis检验
卡方 45.770 0
自由度 2
Pr>χ2 <0.000 1

"

组别 n
 肝脏脂肪变性程度
1 2 3 4
模型组 10 0 1 6 3
辛伐他汀组 12 1 4 6 1
葛根素组 12 2 8 2 0

"

data PGM4; ;
do A=1 to 3; ods HTML;
do B=1 to 4; PROC FREQ;
input F @@; output; weight F;
end; end; cards; tables A*B/CMH
0 1 6 3 scores=rank;
1 4 6 1 run;
2 8 2 0 ods HTML close;

"

统计量 对立假设 自由度 值 概率
1 非零相关 1 12.276 0 0.000 5
2 行均值得分差值 2 12.280 6 0.002 2
3 一般关联 6 13.215 6 0.039 7
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