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Table 1 The correlations of COVID-19 cases and death with BCG coverage and incidence of TB

From: Correlation between immunity from BCG and the morbidity and mortality of COVID-19

  COVID-19 cases per 100,000 population COVID-19 deaths per 100,000 population
Cases Total population BCG coverage < 95% BCG coverage ≥ 95% Total population BCG coverage < 95% BCG coverage ≥ 95%
BCG coverage 0.136 (p = 0.091) 0–.064 (p = 0.588) 0.176 (p = 0.111) 0.061 (p = 0.447) −0.057 (p = 0.629) 0.227 (p = 0.038)
Pulmonary TB – Bacteriologically confirmed −0.687 (p < 0.0005) −0.556 (p < 0.0005) − 0.591 (p < 0.0005) −0.570 (p < 0.0005) − 0.574 (p < 0.0005) −0.333 (p = 0.002)
Pulmonary TB – Clinically confirmed −0.699 (p < 0.0005) −0.674 (p < 0.0005) − 0.567 (p < 0.0005) −0.516 (p < 0.0005) − 0.639 (p < 0.0005) −0.246 (p = 0.0026)
Extra-pulmonary TB −0.652 (p < 0.0005) −0.626 (p < 0.0005) − 0.537 (p < 0.0005) −0.541 (p < 0.0005) − 0.607 (p < 0.0005) −0.314 (p = 0.004)
Overall TB incidence −0.743 (p < 0.0005) −0.644 (p < 0.0005) − 0.663 (p < 0.0005) −0.611 (p < 0.0005) − 0.645 (p < 0.0005) −0.379 (p < 0.0005)
TB incidence in 15–64-year group −0.742 (p < 0.0005) − 0.649 (p < 0.0005) −0.677 (p < 0.0005) − 0.621 (p < 0.0005) −0.646 (p < 0.0005) − 0.405 (p < 0.0005)
TB incidence in > 65-year group − 0.785 (p < 0.0005) − 0.701 (p < 0.0005) −0.697 (p < 0.0005) − 0.647 (p < 0.0005) −0.704 (p < 0.0005) − 0.382 (p < 0.0005)
  1. BCG Bacillus Calmette–Guérin vaccine
  2. TB Tuberculosis