Case-Control Study of High Fat/Cholesterol Diet

The FREQ Procedure

Frequency Percent Row Pct Col Pct

Table of Exposure by Response Exposure Response(Heart Disease) Total Yes No High Cholesterol Diet 11 47.83 73.33 84.62 4 17.39 26.67 40.00 15 65.22     Low Cholesterol Diet 2 8.70 25.00 15.38 6 26.09 75.00 60.00 8 34.78     Total 13 56.52 10 43.48 23 100.00

Statistics for Table of Exposure by Response

Statistic	DF	Value	Prob
Chi-Square	1	4.9597	0.0259
Likelihood Ratio Chi-Square	1	5.0975	0.0240
Continuity Adj. Chi-Square	1	3.1879	0.0742
Mantel-Haenszel Chi-Square	1	4.7441	0.0294
Phi Coefficient		0.4644
Contingency Coefficient		0.4212
Cramer's V		0.4644

WARNING: 50% of the cells have expected counts less than 5. (Asymptotic) Chi-Square may not be a valid test.

Pearson Chi-Square Test
Chi-Square	4.9597
DF	1
Asymptotic Pr > ChiSq	0.0259
Exact Pr >= ChiSq	0.0393

Fisher's Exact Test
Cell (1,1) Frequency (F)	11
Left-sided Pr <= F	0.9967
Right-sided Pr >= F	0.0367
Table Probability (P)	0.0334
Two-sided Pr <= P	0.0393

Estimates of the Relative Risk (Row1/Row2)
Type of Study	Value	95% Confidence Limits
Case-Control (Odds Ratio)	8.2500	1.1535	59.0029
Cohort (Col1 Risk)	2.9333	0.8502	10.1204
Cohort (Col2 Risk)	0.3556	0.1403	0.9009

Odds Ratio (Case-Control Study)
Odds Ratio	8.2500
Asymptotic Conf Limits
95% Lower Conf Limit	1.1535
95% Upper Conf Limit	59.0029
Exact Conf Limits
95% Lower Conf Limit	0.8677
95% Upper Conf Limit	105.5488

Sample Size = 23