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Table 2 T-tests comparing select pairs of health state utilities (N = 200)

From: Acute and chronic impact of cardiovascular events on health state utilities

Comparison Health state Mean (SD) utilities1 Mean (SD) difference score t-statistic p-value
Acute Health States     
A vs. B A. Stroke 0.33 (0.46) −0.34 (0.35) −14.1 <0.0001
B. Acute Coronary Syndrome 0.67 (0.34)    
A vs. C A. Stroke 0.33 (0.46) −0.28 (0.35) −11.1 <0.0001
C. Heart Failure 0.60 (0.38)    
B vs. C B. Acute Coronary Syndrome 0.67 (0.34) 0.07 (0.23) 4.3 <0.0001
C. Heart Failure 0.60 (0.38)    
Chronic Health States     
D vs. E D. Stroke 0.52 (0.38) −0.30 (0.34) −12.6 <0.0001
E. Acute Coronary Syndrome 0.82 (0.17)    
D vs. F D. Stroke 0.52 (0.38) −0.05 (0.33) −2.0 0.0429
F. Chronic Heart Failure 0.57 (0.32)    
E vs. F E. Acute Coronary Syndrome 0.82 (0.17) 0.25 (0.28) 13.0 <0.0001
F. Chronic Heart Failure 0.57 (0.32)    
Acute vs. Chronic Health States    
A vs. D A. Stroke 0.33 (0.46) −0.20 (0.40) −7.0 <0.0001
D. Stroke 0.52 (0.38)    
B vs. E B. Acute Coronary Syndrome 0.67 (0.34) −0.15 (0.33) −6.5 <0.0001
E. Acute Coronary Syndrome 0.82 (0.17)    
C vs. F C. Heart Failure 0.60 (0.38) 0.03 (0.31) 1.4 0.1578
F. Chronic Heart Failure 0.57 (0.32)    
  1. 1TTO utility scores are on a scale anchored with 0 representing dead and 1 representing full health.