Table 4.

Multivariable sequence of associations among health insurance status at diagnosis, mode of detection, and stage at diagnosis for patients aged ≥50 in the Colon Cancer Patterns of Care in Chicago study, 2010-2014 ^a

Variable	Prevalence difference (95% CI) b	P value c
Continuous health insurance with screen detection d	0.20 (0.08 to 0.33)	.002
Screen detection with early stage e	0.15 (0.03 to 0.27)	.01
Continuous health insurance with early stage	0.01 (−0.15 to 0.16)	.70
Private health insurance at diagnosis with screen detection d	0.15 (0.04 to 0.26)	.01
Screen detection with early stage e	0.15 (0.03 to 0.27)	.01
Private health insurance at diagnosis with early stage	−0.05 (−0.18 to 0.08)	.50

^aAll data obtained from in-person interviews with patients or abstracted from their medical records at 9 participating hospitals.

^bPrevalence differences obtained from logistic regression with predictive margins.

^c P value determined by the likelihood-ratio test; significance set at P = .20.

^dMultivariable logistic regression model of screen detection (dependent variable) adjusted for age, race, sex, and socioeconomic status.

^eMultivariable logistic regression model of early-stage diagnosis (dependent variable) adjusted for age, race, sex, socioeconomic status, and health insurance status.