TABLE III.
Logistic Regression Models of the Effect of Primary Predictors on Delay ≥12 Weeks
| Primary Predictor | ||||||||
|---|---|---|---|---|---|---|---|---|
| Insurance Status* | Family Structure† | SVI‡ (U.S.) | SVI‡ (Massachusetts) | |||||
| Adjusted OR§ | P Value | Adjusted OR§ | P Value | Adjusted OR§ | P Value | Adjusted OR§ | P Value | |
| Primary predictor | 1.83 (1.12 to 2.97) | 0.015 | 1.95 (1.11 to 3.45) | 0.021 | 1.43 (0.79 to 2.58) | 0.24 | 1.45 (0.79 to 2.66) | 0.23 |
| Age at symptom presentation | ||||||||
| <11 years | Reference | Reference | Reference | Reference | ||||
| 11 years | 0.52 (0.27 to 1.00) | 0.050 | 0.46 (0.24 to 0.90) | 0.022 | 0.49 (0.26 to 0.94) | 0.031 | 0.49 (0.26 to 0.94) | 0.032 |
| 12 years | 0.39 (0.19 to 0.79) | 0.009 | 0.37 (0.18 to 0.76) | 0.007 | 0.37 (0.18 to 0.76) | 0.006 | 0.37 (0.18 to 0.76) | 0.006 |
| ≥13 years | 0.45 (0.21 to 0.93) | 0.031 | 0.40 (0.19 to 0.84) | 0.016 | 0.43 (0.21 to 0.90) | 0.026 | 0.44 (0.21 to 0.92) | 0.028 |
| Sex | ||||||||
| Female | Reference | Reference | Reference | Reference | ||||
| Male | 1.48 (0.85 to 2.57) | 0.17 | 1.47 (0.84 to 2.57) | 0.17 | 1.44 (0.83 to 2.50) | 0.20 | 1.46 (0.84 to 2.54) | 0.18 |
| Weight status | ||||||||
| Underweight or normal | Reference | Reference | Reference | Reference | ||||
| Overweight | 0.94 (0.40 to 2.17) | 0.88 | 0.97 (0.42 to 2.26) | 0.95 | 0.95 (0.41 to 2.20) | 0.90 | 0.95 (0.41 to 2.20) | 0.91 |
| Obese | 1.51 (0.75 to 3.05) | 0.25 | 1.49 (0.74 to 3.02) | 0.26 | 1.52 (0.75 to 3.06) | 0.25 | 1.50 (0.74 to 3.03) | 0.26 |
| Calendar year of symptom presentation | ||||||||
| 2002–2009 | 1.72 (0.90 to 3.25) | 0.098 | 1.51 (0.80 to 2.86) | 0.20 | 1.49 (0.79 to 2.80) | 0.22 | 1.49 (0.80 to 2.79) | 0.21 |
| 2010–2015 | 1.55 (0.84 to 2.86) | 0.16 | 1.45 (0.79 to 2.66) | 0.23 | 1.45 (0.79 to 2.65) | 0.23 | 1.41 (0.77 to 2.58) | 0.27 |
| 2016–2021 | Reference | Reference | Reference | Reference | ||||
| No. of siblings (excluding patient) | ||||||||
| 0 | Reference | Reference | Reference | Reference | ||||
| 1 | 1.01 (0.42 to 2.40) | 0.99 | 1.21 (0.50 to 2.91) | 0.68 | 1.02 (0.43 to 2.39) | 0.97 | 1.02 (0.43 to 2.40) | 0.97 |
| ≥2 | 1.11 (0.46 to 2.68) | 0.81 | 1.41 (0.58 to 3.43) | 0.45 | 1.21 (0.51 to 2.86) | 0.67 | 1.23 (0.52 to 2.91) | 0.64 |
| Physician specialty at time of symptom presentation | ||||||||
| Internal medicine, family medicine, or pediatrician | Reference | Reference | Reference | Reference | ||||
| Emergency department | 0.63 (0.34 to 1.17) | 0.14 | 0.64 (0.34 to 1.19) | 0.16 | 0.67 (0.36 to 1.24) | 0.21 | 0.68 (0.37 to 1.26) | 0.22 |
| Orthopaedic surgeon | 1.26 (0.67 to 2.38) | 0.47 | 1.23 (0.65 to 2.30) | 0.52 | 1.21 (0.64 to 2.27) | 0.56 | 1.21 (0.65 to 2.27) | 0.55 |
*
Reference: private insurance.
†
Reference: multiguardian households.
‡
Reference: <75th percentile.
§
The values are given as the adjusted OR, with the 95% CI in parentheses.