作者: Stephen Bent
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摘要: UTI: absence of dysuria (summary negative LR, 0.5; 95% CI, 0.3-0.7), back pain (LR, 0.8; 0.7-0.9), history vaginal discharge 0.3; 0.10.9), irritation 0.2; 0.1-0.9), and on examination 0.7; 0.5-0.9). Of all individual diagnostic signs symptoms, the 2 most powerful were irritation, which significantly decreased likelihood UTI when present (LRs, 0.3 0.2, respectively). One study examined combinations resulting LRs more (24.6 for combination frequency but no or irritation). patients with recurrent found that self-diagnosis increased probability 4.0). Conclusions In women who 1 symptoms UTI, infection is approximately 50%. Specific (eg, without irritation) raise to than 90%, effectively ruling in diagnosis based alone. contrast, taking, physical examination, dipstick urinalysis are not able reliably lower posttest disease a level where can be ruled out patient presents symptoms. JAMA. 2002;287:2701-2710 www.jama.com