Murti Michelle, Sarnocinska Ania, Alavinejad Mahnaz, Kerem Aidin, Malikov Kamil, Brown Kevin, Fitzpatrick Tiffany, Hillmer Michael
Ministry of Health, Toronto, ON.
Dalla Lana School of Public Health, University of Toronto, Toronto, ON.
Can Commun Dis Rep. 2025 Aug 28;51(8):297-302. doi: 10.14745/ccdr.v51i08a02. eCollection 2025 Aug.
Respiratory syncytial virus (RSV) surged in the 2022-2023 respiratory season after low activity during the pandemic. To monitor the RSV season in real time and support healthcare planning, Ontario introduced daily hospital bed census reporting of RSV hospitalizations by age group (0-17, 18-64, 65 years and older).
To assess the completeness and quality of the newly introduced real-time surveillance compared to end-of-season ICD-10 coded hospitalization discharge abstract data (DAD) from November 22, 2022, to March 31, 2023.
Respiratory syncytial virus hospitalizations from both data sources were compared to RSV laboratory positivity to assess concordance with overall RSV activity. A longitudinal comparison by age group was assessed by time-lagged cross-correlation of the daily submission data versus DAD data, including cross correlation coefficients for each time lag, confidence bound and the highest correlation value.
Both data sources followed trends in RSV positivity. Data by age groups showed an early peak of paediatric admissions followed by a peak in adult and older adult hospitalizations. Daily surveillance consistently underestimated hospitalizations with a peak of 430 beds by DAD on January 7, 2023, versus 322 beds (75%) for daily reporting on the same day. The maximum correlation coefficient values were 0.67 (all ages), 0.57 (0-17 years), 0.66 (18-64 years) and 0.63 (65 years and older).
Implementation of daily hospital reporting provided accurate trending in RSV hospitalizations by age group to inform within season healthcare and public health planning.
呼吸道合胞病毒（RSV）在疫情期间活动较低后，于2022 - 2023年呼吸道季节激增。为了实时监测RSV季节并支持医疗规划，安大略省引入了按年龄组（0 - 17岁、18 - 64岁、65岁及以上）每日报告RSV住院患者的医院病床普查数据。
评估与2022年11月22日至2023年3月31日季末国际疾病分类第十版（ICD - 10）编码的住院出院摘要数据（DAD）相比，新引入的实时监测的完整性和质量。
将两个数据源的呼吸道合胞病毒住院数据与RSV实验室阳性结果进行比较，以评估与总体RSV活动的一致性。通过每日提交数据与DAD数据的时间滞后互相关分析按年龄组进行纵向比较，包括每个时间滞后的互相关系数、置信区间和最高相关值。
两个数据源均遵循RSV阳性趋势。按年龄组的数据显示，儿科入院有一个早期高峰，随后是成人和老年住院患者的高峰。每日监测始终低估了住院人数，2023年1月7日DAD显示的住院高峰为430张床位，而当日每日报告为322张床位（75%）。最大相关系数值分别为0.67（所有年龄）、0.57（0 - 17岁）、0.66（18 - 64岁）和0.63（65岁及以上）。
每日医院报告的实施提供了按年龄组划分的RSV住院患者的准确趋势，为季节内的医疗保健和公共卫生规划提供信息。
