Table 1.
Infection fatality rate by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by sex and age in Mexico (August–November 2020)
| Sex, age group (years) | Population size (N) |
Seroprevalence (ENSANUT 2020 Covid-19) |
Population with SARS-CoV-2 antibodies |
Deaths in surveillance systema |
COVID-19 deaths by death certificatesb |
Ratio death certificates/ surveillance system | Infection fatality rate surveillance system |
Infection fatality rate COVID-19 deaths by death certificates |
|---|---|---|---|---|---|---|---|---|
| N | % (95% CI) | N | N | N | % (95% CI) | % (95% CI) | ||
| National | 124 950 278 | 24.9 (22.2, 26.7) | 31 104 751 | 94 217 | 145 975 | 1.5 | 0.30 (0.28,0.33) | 0.47 (0.44,0.50) |
| Men (overall) | 60 923 788 | 25.3 (22.3, 27.4) | 15 400 530 | 59 963 | 93 725 | 1.6 | 0.39 (0.36,0.43) | 0.61 (0.56,0.67) |
| 1–9 | 9 779 292 | 18.0 (12.6, 23.3) | 1 748 672 | 73 | 77 | 1.1 | 0.00 (0.00,0.01) | 0.00 (0.00,0.01) |
| 10–19 | 11 127 081 | 26.5 (21.3, 31.8) | 2 939 712 | 81 | 146 | 1.8 | 0.00 (0.00,0.00) | 0.00 (0.00,0.01) |
| 20–29 | 11 634 554 | 29.2 (24.8, 33.6) | 3 391 185 | 690 | 1244 | 1.8 | 0.02 (0.02,0.02) | 0.04 (0.03,0.04) |
| 30–39 | 7 153 413 | 26.3 (21.1, 31.5) | 1 868 550 | 2683 | 4396 | 1.6 | 0.14 (0.12,0.18) | 0.24 (0.19,0.30) |
| 40–49 | 8 542 912 | 30.9 (25.7, 36.0) | 2 648 950 | 7445 | 11 796 | 1.6 | 0.28 (0.24,0.34) | 0.45 (0.38,0.54) |
| 50–59 | 5 115 386 | 26.0 (20.2, 31.7) | 1 325 576 | 13 592 | 21 402 | 1.6 | 1.03 (0.85,1.30) | 1.61 (1.33,2.05) |
| 60–69 | 3 802 326 | 21.9 (16.5, 27.3) | 834 357 | 16 267 | 25 103 | 1.5 | 1.95 (1.56,2.59) | 3.01 (2.41,4.00) |
| 70–79 | 2 834 384 | 16.5 (10.3, 22.7) | 468 058 | 12 625 | 19 251 | 1.5 | 2.70 (1.97,4.29) | 4.11 (3.00,6.55) |
| ≥80 | 934 441 | 18.8 (7.6, 30.1) | 175 471 | 6507 | 10 310 | 1.6 | 3.71 (2.34,8.76) | 5.88 (3.72,13.88) |
| Women (overall) | 64 026 490 | 24.5 (22.0, 26.9) | 15 704 221 | 34 254 | 52 250 | 1.5 | 0.22 (0.20,0.24) | 0.33 (0.31,0.36) |
| 1–9 | 9 500 215 | 23.0 (16.0, 30.0) | 2 180 160 | 55 | 69 | 1.3 | 0.00 (0.00,0.00) | 0.00 (0.00,0.00) |
| 10–19 | 10 809 485 | 22.2 (17.6, 26.7) | 2 410 149 | 82 | 141 | 1.7 | 0.00 (0.00,0.00) | 0.01 (0.00,0.01) |
| 20–29 | 11 024 401 | 26.5 (22.4, 30.6) | 2 917 249 | 405 | 624 | 1.5 | 0.01 (0.01,0.02) | 0.02 (0.02,0.03) |
| 30–39 | 8 848 943 | 29.5 (24.6, 34.3) | 2 598 867 | 1219 | 1752 | 1.4 | 0.05 (0.04,0.06) | 0.07 (0.06,0.08) |
| 40–49 | 9 162 476 | 28.1 (23.8, 32.5) | 2 570 133 | 3406 | 5088 | 1.5 | 0.13 (0.12,0.16) | 0.20 (0.17,0.23) |
| 50–59 | 6 258 098 | 24.5 (20.3, 28.7) | 1 530 997 | 7048 | 10 482 | 1.5 | 0.46 (0.39,0.55) | 0.68 (0.58,0.82) |
| 60–69 | 4 824 502 | 21.2 (16.6, 25.9) | 1 031 111 | 9880 | 14 738 | 1.5 | 0.96 (0.79,1.21) | 1.43 (1.18,1.80) |
| 70–79 | 2 653 824 | 13.1 (8.0, 18.2) | 350 392 | 7864 | 12 183 | 1.5 | 2.24 (1.64,3.56) | 3.48 (2.54,5.52) |
| ≥80 | 944 547 | 12.0 (3.2, 20.7) | 115 163 | 4295 | 7173 | 1.7 | 3.73 (2.18,11.56) | 6.23 (3.63,19.27) |
a
Deaths due to COVID-19 (positive laboratory test result) registered in the national surveillance system named SISVER up to the epidemiological week of each region.
b
COVID-19-specific mortality from all death records for which basic cause of death was coded as U07.1 and U07.2 according to the International Classification of Disease 10th revision (updated in 2020) up to the epidemiological week of each region.