Signs and Evidence

Making clinical sense of scientific data

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Right upper quadrant pain

Cholecystitis
 Positive likelihood ratio
1.50 ( Trowbridge RL et al. )
2.50 ( Abraham S et al. )
(average) 2
Negative likelihood ratio
0.70 ( Trowbridge RL et al. )
0.28 ( Abraham S et al. )
(average) 0.49
Cholelithiasis
 Positive likelihood ratio
1.20 ( Abraham S et al. )
(average) 1.2
Negative likelihood ratio
0.74 ( Abraham S et al. )
(average) 0.74


Sources used:

1.Trowbridge RL et al. Does This Patient Have Acute Cholecystitis? JAMA, January 1, 2003—Vol 289, No. 1 80-86
2.Abraham S et al. Surgical and Nonsurgical Management of Gallstones. Am Fam Physician. 2014 May 15;89(10):795-802