Table 1.
Description of continuously enrolled Iowa Medicaid children ages 6 through 18 years (2008-2010) and significance testing results between orthodontic utilizers and non-utilizers by Chi-square analysis
|
Total population N=116,330 |
Ortho non- utilizers N=112,749 |
Ortho utilizers N=3,581 |
Significance | |
|---|---|---|---|---|
| Variable | N(%) | |||
|
Age Mean ± SD 6-9 years 10-13 14-18 |
11.4 ± 3.7 43,315 (37.2) 35,355 (30.4) 37,660 (32.4) |
11.7 ± 3.7 42,593 (37.8) 33,223 (29.5) 36,933 (32.8) |
11.5 ± 2.4 722 (20.2) 2,132 (59.5) 727 (20.3) |
0.053 |
|
Sex Female Male |
59172 (50.9) 57158 (49.1) |
57059 (50.6) 55690 (49.4) |
2113 (59.0) 1468 (41.1) |
<0.0001 |
|
Race/ethnicity White Black Hispanic Other Unknown/missing |
66780 (57.4) 9904 (8.5) 10078 (8.7) 3797 (3.3) 25771 (22.2) |
64360 (57.1) 9760 (8.7) 9798 (8.7) 3699 (3.3) 25132 (22.3) |
2420 (67.6) 144 (4.0) 280 (7.8) 98 (2.7) 639 (17.8) |
<0.0001 |
|
Length of enrollment (2008-2010) Mean ± SD (months) 11-35 months 36 months |
28.0 ± 8.9 69839 (60.0) 46491 (40) |
27.9 ± 9.0 68123 (60.4) 44626 (39.6) |
30.7 ± 7.7 1716 (47.9) 1865 (52.1) |
<0.0001 |
|
Previous enrollment (2007) 0 months 1-11 months 12 months |
32531 (28.0) 27320 (23.5) 56479 (48.6) |
31769 (28.2) 26510 (23.5) 54470 (48.3) |
762 (21.3) 810 (22.6) 2009 (56.1) |
<0.0001 |
|
Medicaid aid category Income eligible SSI |
111072 (95.5) 5258 (4.5) |
107590 (95.4) 5159 (4.6) |
3482 (97.2) 99 (2.8) |
<0.0001 |
|
Federal Poverty Level (FPL) 0% 1-133% > 133% |
31261 (26.9) 81179 (69.8) 3,866 (3.3) |
30568 (27.1) 78403 (69.6) 3,754 (3.3) |
693 (19.4) 2776 (77.5) 112 (3.1) |
<0.0001 |
|
Primary care oral evaluation (2007) Yes No |
37190 (32.0) 79140 (68.0) |
35550 (31.5) 77199 (68.5) |
1640 (45.8) 1941 (54.2) |
<0.0001 |
|
Urbanicity of residential zip code Metropolitan Micropolitan Small town Rural |
58255 (50.1) 20630 (17.7) 20826 (17.9) 16619 (14.3) |
56730 (50.3) 20090 (17.8) 20023 (17.8) 15906 (14.1) |
1525 (42.6) 540 (15.1) 803 (22.4) 713 (19.9) |
<0.0001 |