Table 3.

Regression Coefficients (β) (and SE), Odds Ratios (and 95% Confidence Intervals), and Nominal Significance Levels for Potentially Predictive Factors for MSI-H, Derived From Multiple Linear Logistic Regression Using the North American Data

Pathology	β (SE)	Odds ratio (95% confidence interval)a	P value
Baseline	−4.31 (0.32)		< .001
Diagnosis before age 50 years	0.67 (0.25)	2.0 (1.2–3.2)	.007
Right-sided	1.64 (0.26)	5.2 (3.1–8.6)	< .001
Mucinous or other	1.06 (0.30)	2.9 (1.6–5.2)	< .001
Poorly differentiated	0.61 (0.26)	1.8 (1.1–3.1)	.02
Crohn’s-like lymphocytic reaction	0.54 (0.26)	1.7 (1.0–2.8)	.04
Tumor-infiltrating lymphocytes	2.09 (0.26)	8.1 (9.9–13.4)	< .001

^aAdjusted for all other features.