Table 3

Firth logistic regression models for mortality by vitamin D level

All patientsSwab-positive patients
OR (95% CI)P valueOR (95% CI)P value
Unadjusted1.04 (0.96 to 1.12)0.371.05 (0.87 to 1.28)0.60
Model21.06 (0.97 to 1.16)0.191.00 (0.79 to 1.26)0.99
Model 31.09 (0.97 to 1.20)0.090.94 (0.71 to 1.24)0.66
  • Model 2: adjusted for age, sex, ever smoking and swab positivity.

  • Model 3: adjusted for age, sex, ever smoking, swab positivity and comorbidities.