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Table 2 Effectiveness of vaccination against any and severe lung injury

From: Gam-COVID-Vac, EpiVacCorona, and CoviVac effectiveness against lung injury during Delta and Omicron variant surges in St. Petersburg, Russia: a test-negative case–control study

 

VE against any lung injury

Severe lung injury

 

Crude (95% confidence interval)

Adjusted for age, sex and triage center (95% confidence interval)

Crude (95% confidence interval)

Adjusted for age, sex and triage center (95% confidence interval)

One-dose Gam-COVID-Vac

73% (68 to 78)

74% (68 to 79)

94% (58 to 99)

94% (60 to 99)

Two-dose Gam-COVID-Vac

53% (51 to 56)

56% (54 to 59)

75% (66 to 82)

76% (67 to 82)

Three-dose Gam-COVID-Vac

66% (63 to 69)

71% (68 to 74)

84% (71 to 91)

87% (76 to 93)

EpiVacCorona

− 9% (− 38 to 14)

2% (− 27 to 24)

17% (− 106 to 66)

36% (− 63 to 75)

CoviVac

49% (41 to 56)

46% (37 to 53)

84% (56 to 94)

80% (45 to 92)