Table 4 Category-oriented likelihood ratios (LR) of signs and symptoms and laboratory results for organic diseases in patients with non-acute abdominal pain*

Male sex

1.41

0.78

Age > 30 years

1.12

0.64

Age > 60 years

1.47

0.9

30 < Age < 60 years

1.08

0.88

Symptoms

History of blood in stool

1.5

0.89

Pain affecting sleep

1.3

0.77

No pain relief after defecation

1.1

0.72

No specific character to pain^#

1.5

0.93

Weight loss > 1 kg in4 weeks

1.29

0.89

Laboratory tests

White blood cell count > 10000 mm^-3

2.28

0.9

Erythrocyte sedimentation rate > 20 mm hour'

2

0.92

Low hemoglobin level

1.78

0.87