Table 2.

Percent of Physicians Reporting Specific Management Decisions within Each Cluster (Difference from Expectation Based on Experimental Design Factors) for Variables Considered for Inclusion in the Cluster Analysis. The Column Labeled Tukey's Multiple Comparisons Lists Any Significant Differences between the Clusters

Variable	Cluster 1 “Cardiac”	Cluster 2 “Talkers”	Cluster 3 “Minimalists”	Tukey's Multiple Comparisons
N	92	93	71	–
Asked questions about
Cardiac risk factors	72% (11%)	70% (8%)	27% (−25%)	Cluster 3 less likely than clusters 1 and 2
Cardiac symptoms	49% (12%)	34% (−2%)	21% (−14%)	All three clusters are different from one another
Pain	34% (5%)	33% (4%)	17% (−11%)	Cluster 3 less likely than clusters 1 and 2
Smoking	78% (9%)	84% (12%)	32% (−27%)	Cluster 3 less likely than clusters 1 and 2
Alcohol	24% (−7%)	51% (17%)	14% (−13%)	Cluster 2 more likely than clusters 1 and 3
Cardiac history	35% (−1%)	53% (16%)	13% (−20%)	All three clusters are different from one another
GI history	16% (−12%)	45% (16%)	14% (−6%)	Cluster 2 more likely than clusters 1 and 3
Ordered testing
Cardiac	100% (1%)	100% (3%)	92% (−4%)	Cluster 3 less likely than clusters 1 and 2
Prescribed
A cardiac medication	84% (16%)	57% (−9%)	58% (−9%)	Cluster 1 more likely than clusters 2 and 3
Offered advice about
Smoking	29% (−12%)	62% (17%)	27% (−6%)	Cluster 2 more likely than clusters 1 and 3
Alcohol	11% (−13%)	41% (17%)	10% (−6%)	Cluster 2 more likely than clusters 1 and 3
Diet	50% (−18%)	85% (12%)	76% (8%)	Cluster 1 less likely than clusters 2 and 3
Exercise	30% (−10%)	48% (9%)	34% (1%)	Cluster 1 less likely than clusters 2 and 3
Psych	12% (−12%)	37% (9%)	24% (4%)	Cluster 1 less likely than clusters 2 and 3
Offered a referral to
A cardiologist	44% (7%)	29% (−7%)	36% (0%)	Clusters 1 and 2 are different
Some other health care professional	17% (6%)	4% (−5%)	9% (−1%)	Clusters 1 and 2 are different