RESUMEN
Introduction: Uroflowmetry is a common urological toolto diagnose bladder outlet obstruction in males but it is notappropriate to use the same for females as female uroflowmetrynomograms are not universally acceptable. By conducting thisstudy we aim to create a nomogram for our population andcompare our findings with other investigators. Study aimed toestablish maximum flowrate and average flowrate in womenand develop its NomogramMaterial and Methods: A total of 445 patients meetinginclusion criteria were enrolled and uroflowmetry performed.Peak flow rate (Qmax), average flow rate (Qave),time topeak flow rate (TQmax),voided volume(VV), post voidresidue(PVR) and total voiding time (TVV) were recorded.Corrected Qmax, Corrected Qave and Body Mass Index (BMIwere calculated. statistical analysis was done.Result: Both peak flow rate and average flow rate correlatespositively with voided volume while they correlates negativelywith age and BMI. Both corrected Qmax and corrected Qavewere not having significant negative correlation with age andBMI. Multivariate regression analysis revealed only voidedvolume to significantly affect PFR independently. Univariatelinear regression analysis revealed that only voided volumeaffects the Average flow rate.Conclusion: This study gives a reference value of peak andaverage flow rates of normal women in the form of confidencelimit to help clinicians diagnose poor flow rates taking intoaccount voided volumes (flow–volume nomograms) as wellas age (corrected flow–age nomogram).