TABLE 4.
Factors Associated With M-CHAT Completion
| Characteristic | Completed M-CHAT, n (%) | Univariable Analysis | Multivariable Analysisa | ||||
|---|---|---|---|---|---|---|---|
| PR | 95% CI | P | APR | 95% CI | P | ||
| Sex | |||||||
| Male | 23 432 (76.6) | Reference | — | — | — | — | — |
| Female | 21 993 (77.0) | 1.00 | 0.98–1.02 | .58 | — | — | — |
| Race and ethnicity | |||||||
| Non-Hispanic white | 37 553 (77.2) | Reference | — | — | — | — | — |
| Hispanic | 4602 (73.1) | 0.95 | 0.92–0.98 | .003 | 0.96 | 0.93–0.99 | .009 |
| Non-Hispanic black | 508 (76.7) | 0.96 | 0.87–1.04 | .31 | 0.96 | 0.88–1.05 | .369 |
| Asian or Pacific Islander | 1158 (79.9) | 0.97 | 0.92–1.03 | .34 | 0.97 | 0.91–1.03 | .332 |
| Location | |||||||
| Urban | 31 459 (78.3) | Reference 0.99 | — | — | — | — | — |
| Rural | 669 (59.2) | 0.99 | 0.92–1.08 | .95 | 1.01 | 0.93–1.09 | .794 |
| Mix | 12 527 (75.0) | 1.01 | 0.99–1.04 | .18 | 1.02 | 0.94–1.10 | .654 |
| SES | |||||||
| 1 (highest) | 11 797 (83.4) | Reference | — | — | — | — | — |
| 2 | 12 874 (79.4) | 1.00 | 0.98–1.03 | .67 | 1.01 | 0.98–1.03 | .574 |
| 3 | 8915 (74.8) | 1.00 | 0.97–1.02 | .78 | 1.00 | 0.97–1.03 | .895 |
| 4 | 6164 (73.3) | 1.00 | 0.97–1.03 | .99 | 1.01 | 0.98–1.05 | .476 |
| 5 (lowest) | 4905 (67.0) | 0.96 | 0.92–0.99 | .02 | 0.97 | 0.94–1.01 | .159 |
| Insurance | |||||||
| Medicaid | 8613 (74.4) | Reference | — | — | — | — | — |
| Private | 25 304 (76.0) | 1.01 | 0.98–1.03 | .63 | — | — | — |
| Self-pay | 2196 (78.2) | 1.01 | 0.97–1.04 | .71 | — | — | — |
| Provider type | |||||||
| Pediatrician | 44 600 (79.9) | Reference | — | — | — | — | — |
| Family physician | 240 (9.4) | 0.12 | 0.09–0.15 | <.001 | 0.12 | 0.09–0.15 | <.001 |
| Advanced practice clinician | 558 (77.2) | 0.76 | 0.60–1.02 | .07 | 0.78 | 0.56–1.03 | .077 |
| Visit type | |||||||
| 18-mo | 23 569 (76.8) | Reference | — | — | — | — | — |
| 24-mo | 21 857 (76.8) | 0.99 | 0.98–1.02 | .10 | — | — | — |
PR, prevalence ratio; —, not applicable.
a
Covariates included in multivariable model: sex, race and ethnicity, location, SES, and insurance.