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[Preprint]. 2021 Aug 21:2021.08.06.21261707. [Version 3] doi: 10.1101/2021.08.06.21261707

Table 4.

Longitudinal analysis of vaccine effectiveness against hospitalizations associated with breakthrough infections in Minnesota, split by month.

Month mRNA-1273 Incidence Rate
Events/Person-Days
[Per 1000 Person-Days]
(# Individuals Contributing)
BNT162b2 Incidence Rate
Events/Person-Days
[Per 1000 Person-Days]
(# Individuals Contributing)
Unvaccinated Incidence Rate
Events/Person-Days
[Per 1000 Person-Days]
(# Individuals Contributing)
IRR mRNA-1273 / Unvax IRR BNT162b2 / Unvax IRR mRNA-1273 / BNT162b2
February 0/14117.0 [0] (n = 1575) 0/15974.0 [0] (n = 1554) 0/15848.0 [0] (n = 1601) N/A N/A N/A
March 1/123233.0 [0.0081] (n = 6958) 1/135930.0 [0.0074] (n = 6594) 9/138478.0 [0.065] (n = 7435) 0.12 (0.0028, 0.9) 0.11 (0.0026, 0.82) 1.1 (0.014, 87)
April 1/303102.0 [0.0033] (n = 14469) 2/330648.0 [0.006] (n = 15144) 20/346174.0 [0.058] (n = 16422) 0.057 (0.0014, 0.36) 0.1 (0.012, 0.43) 0.55 (0.0092, 10)
May 1/509149.0 [0.002] (n = 18465) 3/534837.0 [0.0056] (n = 19536) 25/582284.0 [0.043] (n = 21411) 0.046 (0.0011, 0.28) 0.13 (0.025, 0.43) 0.35 (0.0067, 4.4)
June 0/576677.0 [0] (n = 20603) 1/600226.0 [0.0017] (n = 21455) 7/667073.0 [0.01] (n = 24039) 0 (0, 0.8) 0.16 (0.0035, 12) 0 (0, 41)
July 3/628674.0 [0.0048] (n = 21107) 4/654236.0 [0.0061] (n = 21994) 18/733732.0 [0.025] (n = 24721) 0.19 (0.037, 0.67) 0.25 (0.061, 0.76) 0.78 (0.11, 4.6)