Related Experiment Video
Updated: Apr 23, 2026
Estimation of Urinary Nanocrystals in Humans using Calcium Fluorophore Labeling and Nanoparticle Tracking Analysis
Published on: February 9, 2021
A population based study of the changing demographics of patients undergoing definitive treatment for kidney stone
Michael Ordon1, David Urbach2, Muhammad Mamdani3
1Division of Urology, Department of Surgery, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada.
Purpose:
We examined temporal changes in the demographics of patients undergoing definitive treatment for kidney stones during a 20-year period in Ontario, Canada.
Materials And Methods:
Using the Ontario Health Insurance Plan physician claims database and the Canadian Institute for Health Information Discharge Abstract Database we performed a population based cross-sectional time series analysis by identifying all kidney stone treatments done between July 1, 1991 and December 31, 2010. The demographics assessed were patient gender, age and socioeconomic status. The rate and/or proportion of kidney stone treatments per strata of these demographics were calculated for each 1-year block of the study period. We used time series analysis with exponential smoothing and autoregressive integrated moving average models to assess for trends with time.
Results:
We identified 116,115 patients who underwent treatment for kidney stones during the study period. The rate of stone procedures performed per year increased steadily from 85/100,000 to 126/100,000 population. With time the rate of females who were treated increased significantly from 40/100,000 to 53/100,000 (p <0.0001). In contrast, the rate of males who were treated remained stable, increasing from 82/100,000 to 83/100,000 (p = 0.11). In regard to age the rate of patients older than 64 years increased significantly with time from 67/100,000 to 89/100,000 (p <0.0001). In regard to socioeconomic status approximately 20% of the patients were in each of the 5 income quintiles during the entire study period.
Conclusions:
Our population based study shows an increased rate of females and of patients older than 64 years undergoing definitive treatment for kidney stones with time.
Insights
The rate of kidney stone treatments increased over 20 years, with significant rises in females and older adults (over 64). Male treatment rates remained stable, while socioeconomic status showed no significant change in kidney stone treatment demographics.
Area of Science:
- Urology
- Public Health
- Epidemiology
Background:
- Kidney stones affect a significant portion of the population.
- Understanding demographic trends in kidney stone treatment is crucial for public health planning.
- Previous studies have indicated varying trends in kidney stone prevalence and treatment.
Purpose of the Study:
- To analyze temporal changes in patient demographics undergoing definitive kidney stone treatment.
- To investigate trends in kidney stone treatment rates based on gender, age, and socioeconomic status over a 20-year period in Ontario, Canada.
Main Methods:
- Population-based cross-sectional time series analysis of 116,115 kidney stone treatments from July 1991 to December 2010.
- Utilized Ontario Health Insurance Plan and Canadian Institute for Health Information databases.
- Assessed demographic trends using time series analysis with exponential smoothing and ARIMA models.
Main Results:
- Overall kidney stone treatment rates increased from 85 to 126 per 100,000 population.
- Significant increases observed in treatment rates for females (40 to 53 per 100,000) and patients over 64 years (67 to 89 per 100,000).
- Male treatment rates remained stable (82 to 83 per 100,000); socioeconomic status distribution was consistent across income quintiles.
Conclusions:
- The study identified a significant increase in kidney stone treatments among females and older adults over two decades.
- These demographic shifts in kidney stone treatment necessitate updated public health strategies and resource allocation.
- Findings highlight evolving patterns in kidney stone disease management within the Canadian population.
Related Concept Videos
01:27Urinary Tract Calculi IV: Nutrition Therapy and Prevention
01:30Urinary Tract Calculi III: Medical Management
01:28Urinary Tract Calculi V: Nursing Management
01:26Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
01:25Urinary Tract Calculi VI: Surgical Management
01:28Urinary Tract Calculi I: Introduction