Article Figures & Data
Figures
- Figure 1.
Weekly distribution of the number of COVID-19 cases, in the comparison groups.
Tables
Characteristics With Telephonic Follow-up Without Telephonic Follow-up Both Groups Proportion Difference (95% Confidence Interval) Number of subjects 535,898 962,910 1498,808 Sex Female 276,658 (51.63%) 513,541 (53.33%) 790,199 (52.72%) Male 259,240 (48.37%) 449,369 (46.67%) 708,609 (47.28%) 1.71 (1.54, 1.87) Age group 20 to 39 years old 307,878 (57.45%) 576,422 (59.86%) 884,300 (59%) −2.41 (−2.58, −2.25) 40 to 59 years old 193,696 (36.14%) 311,931 (32.39%) 505,627 (33.74%) 3.75 (3.59, 3.91) 60 or more years old 34,324 (6.40%) 74,557 (7.74%) 108,881 (7.26%) −1.34 (−1.42, −1.25) Occupation Employee 334,484 (62.42%) 603,120 (62.64%) 937,604 (62.56%) −0.22 (−0.38, −0.06) Housewife 37,804 (7.05%) 65,434 (6.80%) 103,238 (6.89%) 0.26 (0.17, 0.34) Other 163,610 (30.53%) 294,356 (30.57%) 457,966 (30.56%) −0.04 (−0.19, 0.11) Epidemic wave 2nd wave 143,578 (26.79%) 165,293 (17.17%) 308,871 (20.61%) 9.63 (9.49, 9.77) 3rd wave 229,929 (42.91%) 253,596 (26.34%) 483,525 (32.26%) 16.57 (16.41, 16.73) 4th wave 162,391 (30.3%) 544,021 (56.5%) 706,412 (47.13%) −26.2 (−26.5, −26.04) Geographical region South 101,093 (18.86%) 136,131 (14.14%) 237,224 (15.83%) 4.73 (4.60, 4.85) Center 303,098 (56.56%) 600,880 (62.4%) 903,978 (60.31%) −5.84 (−6.01, −5.68) North 131,707 (24.58%) 225,899 (23.46%) 357,606 (23.86%) 1.12 (0.97, 1.26) Comorbid conditions Obesity 52,662 (9.83%) 76,340 (7.93%) 129,002 (8.61%) 1.90 (1.80, 2.00) Hypertension 52,532 (9.80%) 89,473 (9.29%) 142,005 (9.47%) 0.51 (0.41, 0.61) Diabetes 34,464 (6.43%) 60,259 (6.26%) 94,723 (6.32%) 0.17 (0.09, 0.25) Tobacco consumption 27,233 (5.08%) 45,633 (4.74%) 72,866 (4.86%) 0.34 (0.27, 0.42) Asthma 8,262 (1.54%) 14,415 (1.5%) 22,677 (1.51%) 0.04 (0.00, 0.09) COPD 1,697 (0.32%) 43,16 (0.45%) 6,013 (0.40%) −0.13 (−0.15, −0.11) Cardiovascular disease 2,274 (0.42%) 54,72 (0.57%) 7,746 (0.52%) −0.14 (−0.17, −0.12) Immunosuppression 1,510 (0.28%) 28,77 (0.30%) 4,387 (0.29%) −0.02 (−0.03, 0.00) HIV infection 1,797 (0.34%) 23,86 (0.25%) 4,183 (0.28%) 0.09 (0.07, 0.11) Chronic kidney disease 2,026 (0.38%) 61,35 (0.64%) 8,161 (0.54%) −0.26 (−0.28, −0.24) Any medical condition 132,496 (24.72%) 214,076 (22.23%) 346,572 (23.12%) 2.49 (2.35, 2.63) Medical outcomes Emergency room attention 24,008 (4.48%) 61,328 (6.37%) 853,36 (5.69%) −1.89 (−1.96, −1.82) Hospitalization 22,255 (4.15%) 62,018 (6.44%) 84,273 (5.62%) −2.29 (−2.36, −2.22) Endotracheal intubation 1,896 (0.35%) 6,301 (0.65%) 8,197 (0.55%) −0.30 (−0.32, −0.28) All-cause death 6,903 (1.29%) 28,368 (2.95%) 35,271 (2.35%) −1.66 (−1.70, −1.61) Hospitalization or death 23,351 (4.36%) 63,756 (6.62%) 87,107 (5.81%) −2.26 (−2.34, −2.19) Abbreviations: COPD, chronic obstructive pulmonary disease; HIV, human immunodeficiency virus.
Data are presented as number (%).
Proportion difference between groups with and without telephonic follow-up.
Characteristics Bivariate Analysis Multivariate Analysis* Relative Risk (95% Confidence Interval) Adjusted Relative Risk (95% Confidence Interval) Male Sex 1.70 (1.66-1.73) 1.96 (1.88-2.04) Age group 20 to 39 years old Ref. Ref. 40 to 59 years old 7.27 (6.97-7.59) 3.31 (3.15-3.49) 60 or more years old 70.84 (68.02 to 73.77) 10.60 (10.04-11.19) Occupation Employee Ref. Ref. Housewife 9.91 (9.62-10.21) 1.76 (1.67-1.86) Other 4.64 (4.52-4.76) 1.30 (1.25-1.35) Epidemic wave 2nd wave Ref. Ref. 3rd wave 0.34 (0.33-0.35) 1.06 (1.03-1.10) 4th wave 0.08 (0.07-0.08) 0.39 (0.37-0.41) Geographical region South Ref. Ref. Center 1.40 (1.36-1.45) 1.13 (1.07-1.18) North 1.91 (1.84-1.98) 1.29 (1.22-1.37) Previous medical conditions Obesity 2.46 (2.39-2.52) 1.11 (1.06-1.16) Hypertension 8.55 (8.38-8.72) 1.12 (1.07-1.17) Diabetes 8.68 (8.50-8.86) 1.16 (1.11-1.21) Tobacco consumption 1.41 (1.35-1.47) 0.81 (0.75-0.86) Asthma 1.12 (1.03-1.21) 0.82 (0.73-0.93) COPD 11.75 (11.25-12.27) 1.21 (1.10-1.32) Cardiovascular disease 9.34 (8.93-9.76) 1.02 (0.93-1.11) Immunosuppression 5.95 (5.52-6.41) 1.54 (1.34-1.77) HIV infection 1.24 (1.04-1.48) 1.42 (1.10-1.85) Chronic kidney disease 16.94 (16.43-17.46) 2.66 (2.47-2.86) Any medical condition 6.90 (6.75-7.05) 1.31 (1.24-1.38) Medical outcomes Emergency room attention 90.83 (88.32 to 93.41) 2.14 (2.03-2.25) Hospitalization 192.12 (185.00 to 199.51) 38.46 (36.18-40.87) Endotracheal intubation 46.95 (46.30 to 47.62) 15.65 (14.50-16.89) Telephonic follow-up 0.44 (0.43-0.45) 0.61 (0.59-0.64) Abbreviations: COPD, chronic obstructive pulmonary disease; HIV, human immunodeficiency virus.
*Results of a multivariate logistic regression model.
