. 2020 Aug 4;111(10):3835–3844. doi: 10.1111/cas.14573

TABLE 2.

Comparison of predictive performance between risk prediction models for upper aerodigestive tract cancer based on case‐cohort subjects from the baseline survey

	C‐index (95% confidence interval)	IDI	Continuous NRI	Categorical NRI ^a
Model
Environmental model	0.67 (0.52‐0.80)	Reference	Reference	Reference
Gene‐environment interaction model	0.71 (0.57‐0.84)	0.0036	0.033	0.13

Abbreviations: IDI, integrated discrimination improvement; NRI, net reclassification improvement.

^{^a}

Risk category of NRI was defined as <0.25%, ≥0.25%, and <1% and ≥1% 10‐y absolute risk of developing upper aerodigestive tract cancer.