Table 3 Unadjusted and adjusted two-dose, unboosted BBIBP-CorV vaccine effectiveness against serious or critical hospitalization among 18–99-year-olds in Morocco

Main analysis

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

90.2 (87.8–92.0)

88.5 (85.8–90.7)

Subgroup analysis

 Male

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

87.6 (83.8–90.5)

83.8 (78.9–87.6)

 Female

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

92.9 (89.9–95.1)

92.6 (89.4–94.9)

 18–29 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

100 (NA-NA)

100 (NA-NA)^b

 30–39 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

100 (NA-NA)

100 (NA-NA)^b

 40–49 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

96.3 (92.5–98.5)

97.0 (93.3–98.7)

 50–59 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

93.5 (89.5–95.9)

93.9 (90.2–96.2)

 < 60 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

96.2 (94.3–97.5)

96.4 (94.6–97.6)

 >  = 60 years

  Not Vaccinated

Ref

Ref

  Fully Vaccinated

52.6 (38.7–63.3)

53.3 (39.6–63.9)