Impact of mandatory masking amid the COVID-19 pandemic on outdoor smoking: an interrupted time-series analysis of a 33-month unobtrusive observational study

• Main Authors: Yuying Sun (Author), Yongda Socrates Wu (Author), Yee Tak Derek Cheung (Author), Man Ping Wang (Author), Jianjiu Chen (Author), Lok Tung Leung (Author), Xiaoyu Zhang (Author), Kin Yeung Chak (Author), Tai Hing Lam (Author), Sai Yin Ho (Author)
• Format: Book
• Published: Frontiers Media S.A., 2023-07-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

BackgroundMask-wearing in outdoor public places in Hong Kong was mandated on 29 July 2020, amid the COVID-19 pandemic. We aimed to evaluate the impact of mandatory masking with no exemption for smoking on outdoor smoking.MethodsWe conducted 253 unobtrusive observations at 10 outdoor smoking hotspots...