Signs and Evidence

Making clinical sense of scientific data

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Dysuria

Urinary tract infection in women
 Positive likelihood ratio
4.71 ( Giesen LGM et al. )
1.50 ( Bent S et al. )
(average) 3.11
Negative likelihood ratio
0.24 ( Giesen LGM et al. )
0.50 ( Bent S et al. )
(average) 0.37
Chlamydia
 Positive likelihood ratio
1.95 ( Berntsson M et al. )
(average) 1.95
Negative likelihood ratio
0.88 ( Berntsson M et al. )
(average) 0.88


Sources used:

1.Giesen LGM et al. Predicting acute uncomplicated urinary tract infection in women: a systematic review of the diagnostic accuracy of symptoms and signs. BMC Family Practice 2010 11:78
2.Bent S et al. Does this woman have an acute uncomplicated urinary tract infection? JAMA 2002 May 22, 287 (20): 2701-10
3.Berntsson M et al. Clinical and Microscopic Signs of Cervicitis and Urethritis: Correlation with Chlamydia trachomatis Infection in Female STI Patients. Acta Derm Venereol 2013; 93: 230–233