Table 1.
Patient demographics of infertile and non-infertile patients.
| Infertile | Non-Infertile | ||
|---|---|---|---|
| Number of Patients | 72,786 | 3,845,790 | |
| Age (years) | Mean (SD) | 33.7 (5.8) | 32.6 (7.5) |
| 20-24, (n,%) | 4,331 (6.0) | 698,131 (18.2) | |
| 25-29, (n,%) | 14,053 (19.3) | 780,473 (20.3) | |
| 30-34, (n,%) | 21,532 (29.6) | 743,454 (19.3) | |
| 35-39, (n,%) | 19,714 (27.1) | 719,187 (18.7) | |
| 40-45, (n,%) | 13,156 (18.1) | 904,545 (23.5) | |
| Follow up time (years) | Mean (SD) | 4.0 (3.7) | 4.2 (3.8) |
| 0-1, (n,%) | 12,593 (17.3) | 632,019 (16.4) | |
| 1-2, (n,%) | 17,552 (24.1) | 878,338 (22.8) | |
| 2-3, (n,%) | 10,319 (14.2) | 539,445 (14.0) | |
| 3-4, (n,%) | 6,920 (9.5) | 366,186 (9.5) | |
| 4+, (n,%) | 25,402 (34.9) | 1,429,802 (37.2) | |
| Total (n) | 292,659.0 | 16,180,799.6 | |
| Nulliparity, (n,%) | 12,073 (16.6) | 309,968 (8.1) | |
| Obesity, (n,%) | 14,689 (20.2) | 572,426 (14.9) | |
| Smoking, (n,%) | 5,313 (7.3) | 206,726 (5.4) | |
| Index date, (n,%) | 2003 | 5,827 (8.0) | 334,573 (8.7) |
| 2004 | 6,109 (8.4) | 339,374 (8.8) | |
| 2005 | 4,938 (6.8) | 290,230 (7.6) | |
| 2006 | 5,867 (8.1) | 319,446 (8.3) | |
| 2007 | 5,114 (7.0) | 276,433 (7.2) | |
| 2008 | 4,865 (6.7) | 270,675 (7.0) | |
| 2009 | 3,991 (5.5) | 242,446 (6.3) | |
| 2010 | 3,350 (4.6) | 202,660 (5.3) | |
| 2011 | 3,431 (4.7) | 198,358 (5.2) | |
| 2012 | 3,380 (4.6) | 189,021 (4.9) | |
| 2013 | 3,549 (4.9) | 180,817 (4.7) | |
| 2014 | 3,729 (5.1) | 176,551 (4.6) | |
| 2015 | 4,262 (5.9) | 189,951 (4.9) | |
| 2016 | 4,646 (6.4) | 206,514 (5.4) | |
| 2017 | 4,691 (6.4) | 216,822 (5.6) | |
| 2018 | 5,037 (6.9) | 211,919 (5.5) | |
| Visits per person year | Median (range) | 4.0 (1.9 - 7.2) | 2.7 (1.3 - 4.8) |
| <1, (n,%) | 9,013 (12.4) | 723,672 (18.8) | |
| 1-2, (n,%) | 9,766 (13.4) | 752,178 (19.6) | |
| 2+, (n,%) | 54,007 (74.2) | 2,369,940 (61.6) | |
| Region of the country, (n,%) | Midwest | 16,479 (22.6) | 954,824 (24.8) |
| Northeast | 8,201 (11.3) | 385,803 (10.0) | |
| South | 29,962 (41.2) | 1,732,143 (45.0) | |
| West | 17,919 (24.6) | 766,041 (19.9) | |
| Unknown | 225 (0.3) | 6,979 (0.2) | |
| Unknown | 16,479 (22.6) | 954,824 (24.8) | |
| Race, (n,%) | Asian | 7,129 (9.8) | 197,821 (5.1) |
| Black | 6,972 (9.6) | 364,996 (9.5) | |
| Hispanic | 9,046 (12.4) | 445,851 (11.6) | |
| White | 40,029 (55.0) | 2,365,380 (61.5) | |
| Unknown | 9,610 (13.2) | 471,742 (12.3) |