Table 4.

Aggregate Test Rankings Before and After Consideration of Attributes

Short DescriptionRanking After Short DescriptionaRanking After Short Description and all 13 Attributesb
a Reliability=0.97, =0.21; P <.001.
b Reliability=0.98, =0.19; P <.001.
Fecal occult blood testing1.892.60
This test checks if your bowel movement contains blood. It is done at home using a test kit with 3 cards. You smear a sample of your bowel movement onto a card. This is done for 3 different bowel movements. The 3 cards are then returned to the laboratory
Colonoscopy2.221.79
A doctor checks for growths or cancer in your whole colon using a flexible, long, narrow, lighted tube with a camera on the end. It is inserted into your bottom and then passed into your whole colon, which can be seen on a television screen. You are given medicine through a needle in your arm to make you sleepy during the test
Flexible sigmoidoscopy2.612.46
A doctor checks for growths or cancer in the lower third of your colon using a short, flexible, narrow, lighted tube with a camera on the end. It is inserted into your bottom and then passed only into your lower colon, which can be seen on a television screen. You are awake during the test
Double-contrast barium enema3.283.15
The doctor checks the outline of your colon for growths or cancers. A white liquid called barium is put into your bottom through a tube by a radiology technician. You must hold the liquid in while air is also put into your bottom. You are on a table that is moved around and then X-rays are taken with you in different positions. You are awake during the test