Table 4.

Adjusted RRs of Diabetes Across Quintiles of TFMI in the United Kingdom, United States, and South Korea

	Men				Women
	RR	95% CI	P	Linear trend	RR	95% CI	P	Linear trend
United Kingdom
TFMI quintile 1; 2.38 (M), 2.42 (W)	1				1
TFMI quintile 2; 3.75 (M), 3.78 (W)	1.26	0.98-1.63	.08	<.001	0.99	0.65-1.49	.94	<.001
TFMI quintile 3; 4.65 (M), 4.84 (W)	1.89	1.49-2.40	<.001		1.52	1.04-2.21	.03
TFMI quintile 4; 5.61 (M), 6.09 (W)	2.04	1.60-2.60	<.001		2.17	1.51-3.11	<.001
TFMI quintile 5; 7.70 (M), 8.61 (W)	2.89	2.20-3.78	<.001		3.11	2.09-4.63	<.001
United States
TFMI quintile 1; 2.20 (M), 2.94 (W)	1
TFMI quintile 2; 3.33 (M), 4.44 (W)	1.53	1.04-2.26	.03	<.001	2.54	1.56-4.15	<.001	<.001
TFMI quintile 3; 4.08 (M), 5.64 (W)	2.23	1.54-3.22	<.001		3.19	1.93-5.28	<.001
TFMI quintile 4; 4.89 (M), 6.89 (W)	2.01	1.37-2.96	<.001		6.25	3.75-10.41	<.001
TFMI quintile 5; 6.93 (M), 9.50 (W)	3.01	1.96-4.60	<.001		10.39	5.81-18.56	<.001
South Korea
TFMI quintile 1; 1.51 (M), 2.43 (W)	1
TFMI quintile 2; 2.38 (M), 3.51 (W)	1.26	0.98-1.61	.07	<.001	1.53	1.15-2.04	.004	<.001
TFMI quintile 3; 2.99 (M), 4.24 (W)	1.43	1.11-1.84	.006		1.84	1.39-2.44	<.001
TFMI quintile 4; 3.57 (M), 4.97 (W)	1.64	1.26-2.14	<.001		2.12	1.59-2.82	<.001
TFMI quintile 5; 4.62 (M), 6.37 (W)	1.83	1.35-2.48	<.001		2.59	1.87-3.60	<.001

Covariates: age, ethnicity (UK White, UK mixed, Asian or Asian British, Black or Black British, UK Chinese, UK other ethnic groups, US Mexican American, US other Hispanic, US non-Hispanic White, US non-Hispanic Black, and US other race—including multiracial, and Korean), and smoking status.

BMI, body mass index; M, male; RR, relative risk; TFMI, trunk fat mass index; W, women.