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. 2021 Jan 4;181(4):439–448. doi: 10.1001/jamainternmed.2020.7968

Figure 3. Cumulative Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Mortality Rates.

Figure 3.

A, Age groups. B, Categories of physical functioning. C, Categories of cognitive functioning. Physical functioning was assessed with the activities of daily living (ADL) score, which ranges from 0 to 28 and describes a patient’s range of impairment from substantial to very severe, with higher values indicating greater impairment. To facilitate interpretation of findings, scores were divided into 4 quartiles (ie, 0-14, 15-19, 20-21, and 22-28). Cognitive functioning was assessed with the Cognitive Function Scale (CFS), which is a hierarchical 4-level scale derived from a resident’s Brief Interview for Mental Status (BIMS) assessment and/or Cognitive Performance Scale (CPS) and integrates their findings into a single score. Accordingly, a residents’ cognitive function is assessed as severely impaired (ie, individuals who were not able to complete the BIMS by themselves or have a CPS score of 5 or 6), moderately impaired (ie, a BIMS score of ≤7 or a CPS score of 3-4), mildly impaired (ie, a BIMS score of 8-12 or a CPS score of ≤2), or cognitively intact (ie, individuals who were able to complete the BIMS and scored between 13 and 15).