Triceps skinfold thickness trajectories and the risk of all-cause mortality: A prospective cohort study

Table 1 Association between triceps skinfold thickness trajectories and risk of all-cause mortality by sex

Trajectories	No. of participants/death	Model 1	Model 2	Model 3	Model 4
		HR (95%CI)	HR (95%CI)	HR (95%CI)	HR (95%CI)
Male
Class 1	2132/335	1	1	1	1
Class 2	3818/221	0.674 (0.564, 0.805)	0.685 (0.572, 0.820)	0.654 (0.532, 0.805)	0.651 (0.529, 0.801)
Class 3	1379/40	0.670 (0.476, 0.942)	0.675 (0.478, 0.954)	0.628 (0.415, 0.949)	0.635 (0.420, 0.961)
Female
Class 1	1968/213	1	1	1	1
Class 2	4828/206	0.827 (0.680, 1.007)	0.844 (0.693, 1.029)	0.982 (0.777, 1.241)	0.984 (0.779, 1.244)
Class 3	620/4	0.335 (0.124, 0.910)	0.341 (0.126, 0.927)	0.441 (0.156, 1.246)	0.447 (0.158, 1.264)

Model 1 was adjusted for age, marriage status (married or not), educational attainment levels (low, medium, or high), household income per capita levels (low, medium, or high), and living in city (yes or no). Model 2 was adjusted for the variables in Model 1 as well as smoking status (ever/current or never smoker), alcohol consumption (yes or no), physical activity levels (low, moderate, or high), total energy intake, fat intake, protein intake, carbohydrate intake. Model 3 included variables in Model 2 and was adjusted for body mass index, waist circumference, triceps skinfold thickness, mid-upper arm circumference, systolic blood pressure, and diastolic blood pressure. Model 4 was adjusted for the variables in Model 3 as well as the history of diabetes and hypertension.