Table 1

Demographics, proportion and the number of individuals who underwent nasal swab PCR test for SARS-CoV-2; numbers of hospital admission and prevalence of COVID-19 in studied groups

ICEBIO groupICEBIO comparatorsMTX groupMTX comparators
No.143813 815174622 962
Mean age ±SD54.9±14.954.7±15.160.4±14.659.6±14.5
% females59.0%58.7%61.9%62.0%
No. of nasopharyngeal swaps427 (297 per 1000 population)3016 (218 per 1000 population)426 (244 per 1000 population)4565 (199 per 1000 population)
No. of tested individuals (%)383 (26.6%)2728 (19.7%)385 (22.1%)4838 (21.1%)
No. of SARS-CoV-2-positive individuals (%)9 (0.6%) *84 (0.6%)5 (0.3%)134 (0.6%)
Prevalence of COVID-19 in tested subjects2.3%3.1%1.3%2.8%
No. of hospital admissions (% of infected)3 (33%)3 (3.6%)1 (20%)13 (9.7%)
No. of admitted patients with hypoxia23110
No. of admitted patients intubated and on mechanical ventilators0102
Mean length of admission ±SD4.7±3.620.2±12.71410.8±7.8
Mean age of admitted patients ±SD64.7±6.170±146862.3±9
  • *All were treated with tumour necrosis factor (TNF) inhibitors (85.2% of patients in ICEBIO are on TNF inhibitors).