Descriptive statistics for the potential predictor variables which were entered into the multivariate CART
| Completed visit | No-show | Overall | ||
| Type of visit, count (%) | New | 36 228 (91) | 3784 (9) | 40 012 (100) |
| New to provider | 2162 (85) | 371 (15) | 2533 (100) | |
| Nurse | 3659 (87) | 552 (13) | 4211 (100) | |
| Procedure | 2251 (88) | 314 (12) | 2565 (100) | |
| Preoperative | 1071 (91) | 107 (9) | 1178 (100) | |
| Postoperative | 15 531 (91) | 1597 (9) | 17 128 (100) | |
| Return | 55 067 (86) | 8818 (14) | 63 885 (100) | |
| Gender, count (%) | Female | 51 360 (88.5) | 6647 (11.5) | 58 007 (100) |
| Male | 64 609 (88) | 8896 (12) | 131 512 (100) | |
| Location, count (%) | Main campus | 99 224 (88) | 13 432 (12) | 112 656 (100) |
| Satellites | 16 745 (89) | 2111 (11) | 18 856 (100) | |
| Appointment day, count (%) | Monday | 23 563 (86) | 3802 (14) | 27 338 (100) |
| Tuesday | 22 955 (88) | 3064 (12) | 26 019 (100) | |
| Wednesday | 22 371 (89) | 2737 (11) | 25 108 (100) | |
| Thursday | 24 571 (89) | 3049 (11) | 27 620 (100) | |
| Friday | 22 499 (89) | 2889 (11) | 25 338 (100) | |
| Appointment month, count (%) | January | 9986 (88) | 1358 (12) | 11 344 (100) |
| February | 10 350 (89) | 1343 (11) | 11 693 (100) | |
| March | 12 892 (88) | 1721 (12) | 14 613 (100) | |
| April | 12 081 (89) | 1551 (11) | 13 632 (100) | |
| May | 12 642 (89) | 1761 (11) | 14 403 (100) | |
| June | 12 883 (88) | 1959 (12) | 14 842 (100) | |
| July | 7793 (89) | 1034 (11) | 8827 (100) | |
| August | 7058 (89) | 906 (11) | 7964 (100) | |
| September | 7452 (89) | 920 (11) | 8372 (100) | |
| October | 8503 (89) | 1052 (11) | 9555 (100) | |
| November | 6963 (89) | 891 (11) | 7854 (100) | |
| December | 7366 (88) | 1047 (12) | 8413 (100) | |
| Payor type, count (%) | Private insurance | 61 672 (91) | 5953 (9) | 67 625 (100) |
| Government insurance | 54 297 (85) | 9590 (15) | 63 887 (100) | |
| Clinic type, count (%) | Clubfoot | 1563 (87) | 233 (13) | 1796 (100) |
| Cerebral palsy | 1153 (84) | 208 (15) | 1361 (100) | |
| Early-onset scoliosis | 500 (88) | 70 (12) | 570 (100) | |
| Fracture | 46 031 (89) | 6008 (11) | 52 039 (100) | |
| Hand | 951 (76) | 297 (24) | 1248 (100) | |
| Hip | 1389 (92) | 123 (8) | 1512 (100) | |
| Lower extremity alignment | 1847 (80) | 4644 (20) | 2311 (100) | |
| General orthopaedics | 45 643 (89) | 5736 (11) | 51 379 (100) | |
| Spine/spinal deformity | 3260 (90) | 350 (10) | 3610 (100) | |
| Sports | 9902 (88) | 1348 (12) | 11 250 (100) | |
| Toe | 2481 (83) | 511 (17) | 2992 (100) | |
| Child age at appointment (mean±SD) | 11±5 | 11±6 | 11±5 | |
| Distance to clinic location (mean±SD) | 40±104 | 39±88 | 40±102 | |
| Days between scheduling and appointment (mean±SD) | 17±19 | 24±24 | 17±20 | |
| Appointment hour (24-hour clock) (mean±SD) | 12±3 | 12±3 | 12±3 | |
CART, classification and regression tree.