Table 2.

Changes in racial and ethnic disparities in the incidence of total gastric cancer and non-cardia gastric cancer by sex in the United States, 1992-2014

	1992		2013		% Change, 1992-2013
	Index	95% CI	Index	95% CI
Total gastric cancer
Males
Absolute scale
Range difference	16.6	9.1 to 24.2	6.8	5.3 to 8.4	–58.9
Between-group variance	40.0	20.4 to 41.6	8.5	5.4 to 11.5	–72.7
Relative scale
Range ratio	2.5	1.3 to 4.5	1.9	1.7 to 2.1	–23.8
Index of disparity	77.4	–29.3 to 184.0	64.1	44.8 to 83.5	–17.1
Mean log deviation	0.06	0.04 to 0.07	0.04	0.03 to 0.05	–31.9
Theil index	0.06	0.04 to 0.08	0.04	0.03 to 0.05	–36.2
Female
Absolute scale
Range difference	9.7	7.5 to 11.9	5.9	4.8 to 7.0	–39.6
Between-group variance	11.8	7.7 to 16.0	6.0	4.1 to 7.8	–49.6
Relative scale
Range ratio	2.9	2.5 to 3.5	2.8	2.4 to 3.3	–4.2
Index of disparity	118.3	82.4 to 154.2	140.1	104.4 to 175.7	18.4
Mean log deviation	0.09	0.07 to 0.12	0.10	0.08 to 0.13	9.5
Theil index	0.10	0.07 to 0.12	0.10	0.07 to 0.12	0.1
Non-cardia gastric cancer
Male
Absolute scale
Range difference	13.7	10.9 to 16.6	6.1	4.9 to 7.3	–55.6
Between-group variance	21.3	14.4 to 28.2	7.4	5.4 to 9.4	–65.2
Relative scale
Range ratio	3.8	3.2 to 4.6	3.4	2.9 to 4.0	–11.7
Index of disparity	156.8	111.9 to 201.7	193.5	144.7 to 242.4	23.4
Mean log deviation	0.14	0.10 to 0.18	0.16	0.12 to 0.19	11.6
Theil index	0.15	0.11 to 0.18	0.14	0.11 to 0.17	–1.7
Female
Absolute scale
Range difference	7.6	5.8 to 9.5	3.7	2.8 to 4.5	–51.6
Between-group variance	7.5	4.7 to 10.3	2.6	1.7 to 3.6	–64.6
Relative scale
Range ratio	3.8	3.1 to 4.6	3.1	2.6 to 3.8	–17.2
Index of disparity	156.1	108.9 to 203.4	166.1	114.7 to 217.6	6.4
Mean log deviation	0.15	0.11 to 0.19	0.13	0.09 to 0.17	–10.5
Theil index	0.15	0.11 to 0.19	0.12	0.09 to 0.16	–19.1

CI, confidence interval.