Table 2.
Demographic characteristic changes of Greater Plains Collaborative Weight cohort over time
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | |
|---|---|---|---|---|---|---|
| N (Total) | 1 951 306 | 2 209 608 | 2 343 943 | 2 490 952 | 2 668 068 | 2 734 073 |
| Age | ||||||
| Age group 1 (2–19) | 460 283 (23.6%) | 532 646 (24.6%) | 555 133 (23.7%) | 565 557 (22.7%) | 581 869 (21.8%) | 600 160 (22%) |
| Age group 2 (20–64) | 1 148 037 (58.8%) | 1 287 471 (59.5%) | 1 365 400 (58.3%) | 1 463 500 (58.8%) | 1 591 222 (59.6%) | 1 592 967 (58.3%) |
| Age group 3 (65) | 342 986 (17.6%) | 342 986 (15.9%) | 423 410 (18.1%) | 461 895 (18.5%) | 494 977 (18.6%) | 540 946 (19.8%) |
| Gender | ||||||
| Female | 1 109 376 (56.9%) | 1 254 592 (56.8%) | 1 336 098 (57%) | 1 373 698 (56.4%) | 1 536 637 (57.6%) | 1 562 339 (57.1%) |
| Male | 841 882 (43.1%) | 954 915 (43.2%) | 1 007 732 (43%) | 1 060 995 (43.6%) | 1 131 297 (42.4%) | 1 171 536 (42.8%) |
| Other | 57 (0%) | 101 (0%) | 113 (0%) | 109 (0%) | 134 (0%) | 198 (0%) |
| Race | ||||||
| White | 1 368 825 (70.1%) | 1 609 826 (72.9%) | 1 735 676 (74%) | 1 840 661 (73.9%) | 1 967 581 (73.7%) | 2 008 078 (73.4%) |
| African American | 196 668 (10.1%) | 242 416 (11%) | 267 422 (11.4%) | 281 333 (11.3%) | 298 807 (11.2%) | 299 407 (11%) |
| Other | 174 331 (8.9%) | 146 986 (6.7%) | 147 143 (6.3%) | 165 797 (6.7%) | 186 941 (7%) | 190 526 (7%) |
| Unknown | 211 482 (10.8%) | 210 380 (9.5%) | 193 702 (8.3%) | 203 161 (8.2%) | 214 739 (8%) | 236 062 (8.6%) |
| Ethnicity | ||||||
| Hispanic | 230 213 (10.8%) | 283 422 (12.8%) | 318 597 (13.6%) | 334 192 (13.4%) | 349 944 (13.1%) | 363 022 (13.3%) |
| Non-Hispanic | 1 342 151 (63.1%) | 1 548 366 (70.1%) | 1 673 609 (71.4%) | 1 794 564 (72%) | 1 928 727 (72.3%) | 1 965 167 (71.9%) |
| Other | 4984 (0.2%) | 5250 (0.2%) | 5877 (0.3%) | 6147 (0.2%) | 6587 (0.2%) | 6552 (0.2%) |
| Unknown | 549 465 (25.8%) | 372 570 (16.9%) | 345 860 (14.8%) | 356 049 (14.3%) | 382 810 (14.3%) | 399 332 (14.6%) |