Logistic regression to generate a predictive model for AIP mutations*
| Variable | OR (95% CI) | P value |
| Age of onset | ||
| >30 | 1 | – |
| 0–18 | 14.34 (7.41 to 29.31) | <0.001 |
| 19–30 | 2.26 (1.17 to 4.35) | 0.015 |
| Positive family history | 10.85 (6.48 to 18.16) | <0.001 |
| Diagnosis | ||
| Others | 1 | – |
| GH excess | 9.74 (5.12 to 18.52) | <0.001 |
| Size (macroadenoma) | 4.49 (1.91 to 10.59) | 0.001 |
*Variables are listed in the order of their statistical strength for prediction and each OR is adjusted for all the other variables.
AIP, aryl hydrocarbon receptor-interacting protein; GH, growth hormone.