Estimated number of patient visits lost during the COVID-19 pandemic (totals from April to December 2020) by quarter of 2020, Mexican Institute of Social Security
| Indicator | 2020 quarter | Observed | Predicted | Estimated difference | 95% CI |
| Contraceptives services | 2 | 47 999 | 107 948 | 59 949 | 57 426 to 62 471 |
| 3 | 57 350 | 115 895 | 58 545 | 55 824 to 61 266 | |
| 4 | 66 871 | 98 483 | 31 612 | 29 263 to 33 960 | |
| Antenatal care visits | 2 | 583 568 | 808 920 | 225 352 | 207 230 to 243 474 |
| 3 | 610 712 | 840 821 | 230 109 | 211 477 to 248 741 | |
| 4 | 573 812 | 782 503 | 208 691 | 190 957 to 226 425 | |
| Deliveries | 2 | 78 235 | 88 036 | 9801 | 7712 to 11 890 |
| 3 | 78 673 | 98 728 | 20 055 | 17 587 to 22 523 | |
| 4 | 77 986 | 97 305 | 19 319 | 16 980 to 21 659 | |
| Sick child visits | 2 | 6756 | 22 005 | 15 249 | 14 884 to 15 613 |
| 3 | 7832 | 19 661 | 11 829 | 11 497 to 12 160 | |
| 4 | 10 045 | 7368 | −2677* | −2 to 921 to −2 to 432 | |
| Vaccinations | 2 | 136 807 | 230 260 | 93 453 | 88 237 to 98 670 |
| 3 | 172 567 | 206 964 | 34 397 | 29 657 to 39 138 | |
| 4 | 134 388 | 186 608 | 52 220 | 47 436 to 57 004 | |
| Cervical cancer screening | 2 | 192 674 | 602 223 | 409 549 | 392 342 to 426 756 |
| 3 | 219 634 | 620 586 | 400 952 | 383 037 to 418 867 | |
| 4 | 350 456 | 590 371 | 239 915 | 219 317 to 260 512 | |
| Breast cancer screening | 2 | 59 630 | 231 645 | 172 015 | 165 341 to 178 688 |
| 3 | 63 664 | 269 346 | 205 682 | 197 873 to 213 491 | |
| 4 | 146 378 | 256 834 | 110 456 | 102 127 to 118 786 | |
| Diabetes visits | 2 | 2 645 177 | 4 032 625 | 1 387 449 | 1 303 950 to 1 470 947 |
| 3 | 2 711 435 | 4 237 637 | 1 526 202 | 1 438 732 to 1 613 671 | |
| 4 | 2 980 106 | 4 220 891 | 1 240 785 | 1 152 722 to 1 328 848 | |
| Hypertension visits | 2 | 2 471 319 | 3 629 864 | 1 158 545 | 1 084 292 to 1 232 797 |
| 3 | 3 197 036 | 3 851 904 | 654 868 | 575 742 to 733 994 | |
| 4 | 3 476 741 | 3 638 847 | 162 106 | 88 269 to 235 943 |
Quarter 2 is April to June 2020, quarter 3 is July to September 2020 and quarter 4 is October to December 2020. Total predicted is the sum of predicted visits from GEE models based on pre-COVID-19 months and adjusted for seasonality. Indicator definitions are in online supplemental materials.
*The negative estimated difference in sick child visits for quarter 4 of 2020 is due to observed visits in the fourth quarter surpassing predicted visits.
GEE, generalised estimating equation.