Accuracy of a "Single Question Nocturia Score" compared to the "International Prostate Symptoms Score" in the evaluation of lower urinary tract symptoms in benign prostatic hyperplasia: A study performed at Ndola Teaching Hospital, Ndola, Zambia.

We recruited 162 patients with an age range between 50 and 88 years. The mean age was 66.7 (standard deviation ± 8.97 years). The IPSS showed that 85 patients (52%) presented with mild symptoms, and 77 patients (48%) presented with severe-to-moderate symptoms. In contrast, the SQNS showed that 88 patients (54.3%) presented with mild symptoms and 74 patients (46.7%) presented with severe-to-moderate symptoms. The sensitivity of the SQNS was 91%, and the specificity was 87%. The correlation coefficient of the SQNS to IPSS using Pearson correlation coefficient, was 0.74. This study showed that in our setting, the SQNS may be used as an alternative to the IPSS in assessing the severity of LUTS in men with BPH especially in a busy clinic.