Weekly rate ratios of hospital admissions among IRHH and housed individuals (2020 vs 2019). Weeks -10, 0, and 27 refer to the weeks of January 5, March 15, and September 20 in 2020, respectively. The first vertical line (Week 0) marks the beginning of the peak period, corresponding to the initial state of emergency and province-wide lockdown in Ontario. The second vertical line (Week 13) marks the beginning of the re-opening period. Panel A shows medical-surgical admissions, panel B shows non-elective admissions, panel C shows elective surgical admissions, and panel D shows psychiatric admissions.