The BNT162b2 vaccine is associated with lower new COVID‐19 cases in nursing home residents and staff

Autor: David R. Gifford, Marsida Domi, Anna Nicolaou, Courtney Bishnoi, Michael Leitson, Kiran Sreenivas
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of the American Geriatrics Society
ISSN: 1532-5415
0002-8614
Popis: Background/Objectives The effectiveness of the BNT162b2 vaccine on preventing the spread of COVID‐19 and deaths in nursing homes (NH) is unknown. Design We used zero‐inflated negative binomial mixed effects regressions to model the associations of time since the vaccine clinic ending the week of December 27, 2020 (cohort 1), January 3, 2021 (cohort 2), or January 10, 2021 (cohort 3) controlling for county rate of COVID‐19, bed size, urban location, racial and ethnic census, and level of registered nurses with resident cases and deaths of COVID‐19 and staff cases of COVID‐19. Setting and Participants All 2501 NHs who held a vaccine clinic from the first 17 states to initiate clinics as part of the Pharmacy Partnership for Long‐Term Care Program. Main Outcome(s) and Measure(s) Adjusted Incidence Rate Ratio (IRR) for time in 3, 4, 5, and 6 weeks after the first vaccine clinic for resident cases and deaths of COVID‐19 and staff cases of COVID‐19. Results Resident and staff cases trended downward in all three cohorts following the vaccine clinics. Time following the first clinic at 5 and 6 weeks was consistently associated with fewer resident cases (IRR: 0.68 [95% CI: 0.54–0.84], IRR: 0.64 [95% CI: 0.48–0.86], respectively); resident deaths (IRR: 0.59 [95% CI: 0.45–0.77], IRR: 0.45 [95% CI: 0.31–0.65], respectively); and staff cases (IRR: 0.64 [95% CI: 0.56–0.73], IRR: 0.51 [95% CI: 0.42–0.62], respectively). Other factors associated with fewer resident and staff cases included facilities with less than 50 certified beds and high nurse staffing per resident day (>0.987). Contrary to prior research, higher Hispanic non‐white resident census was associated with fewer resident cases (IRR: 0.42, 95% CI: 0.31–0.56) and deaths (IRR: 0.18, 95% CI: 0.12–0.27). Conclusions The BNT162b2 vaccine is associated with decreased spread of SARS‐CoV‐2 in both residents and staff as well as decreased deaths among residents.
See related editorial by Ouslander et al and related articles by Mor et al, Moore et al, and Rudolph et al.
Databáze: OpenAIRE
Externí odkaz: