Urinary tract infection (UTI) is one of the most common diseases in population while antibiotic resistant in UTI has become a critical problem in Hong Kong, that a large proportion of the bacteria in UTI resistant to commonly used anti-UTI antibiotic treatment. This is largely due to the empirical treatment (i.e. no bacteria information is available at the time of treatment) and overtreatment of antibiotics in the past decades. Some patients who did not actually have UTI were prescribed with antibiotics because they have symptoms similar to UTI. In order to avoid unnecessary use of antibiotics and therefore reduce the antibiotic resistance rates of UTI, we propose to apply a new urine sediment analyzer (UF-5000) in clinical practice for UTI which could provide quick label for potential bacteria in urine, and give more information on the possible species of the bacteria. UF-5000 is a urine sediment analyzer manufactured by Sysmex Ltd. (Japan), it is widely used in central laboratories of hospitals and private laboratories, but not commonly seen in out-patient clinic setting. UF-5000 is capable of counting the amount of bacteria present in the given urine sample and provide Gram staining\*, with results available within 5 minutes. While routine urine culture would take around 3 days. A study done by The University of Hong Kong in 2019 has shown that UF-5000 has higher accuracy than conventional dipstick, with reliable Gram staining result. It has a negative-prediction value of 96%, which means it could accurately identify the cases who had no UTI but only similar symptoms. Those cases were mostly inflammatory diseases that did not require antibiotics. This study aims to evaluate whether bacteria information provided by UF-5000 would be able to guide a precision use of antibiotic treatment and avoid unnecessary antibiotic use.
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proportion of subjects assigned with "Delay antibiotics treatment" in the intervention group that has confirmed no clinical indication for antibiotics treatment
Timeframe: 1 week