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Likelihood of common vaginal infections

Likelihood of common vaginal infections
Infection Sign/symptom Likelihood ratio*
Candidiasis Pruritus absent 0.18 to 0.79
Pruritus as chief complaint 3.3
Inflammatory signs present 1.4 to 8.4
Curdlike discharge with pruritus 150
Yeast not seen on KOH wet prep 0.51 to 0.66
Bacterial vaginosis No complaint of odor 0.07
Complaint of malodorous discharge 1.6 to 3.2
Trichomoniasis Inflammatory signs present 6.4
Trichomonads on saline wet mount 51 to 310
Trichomonads absent on saline wet mount 0.34 to 0.51
Likelihood_vaginitis_by_sym.htm
KOH: potassium hydroxide.
* Confidence intervals are wide but significant.
Adapted from Anderson MR, Klink K, Cohrssen A. JAMA 2004; 291:1368.
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