Table 3. Adjusted Cox proportional-hazards regression models for the association of percent change in WC (%) with CVD mortality and all-cause mortality in an elderly Chinese population.

Baseline WC	Percent change in WC (%)	Person-years	CVD mortality					All-cause mortality
			Events	Mortality	Model1*	Model2†		Events	Mortality	Model1*	Model2†
CVD: cardiovascular disease; WC: waist circumference. *Model1: adjusted for age, living alone, smoking status, alcohol consumption, physical activity, history of hypertension and diabetes mellitus; †Model2: Model1+ further adjusted for body mass index, systolic blood pressure, diastolic blood pressure, resting heart rate, fasting plasma glucose, total cholesterol, triglyceride, and high-density lipoprotein cholesterol.
Male
Low	Loss	426.71	8	18.75	1.83 (0.89−3.75)	1.78 (0.87−3.64)		31	72.65	2.02 (1.4−2.91)	1.98 (1.37−2.85)
	Stable	18,768.18	152	8.10	1.00	1.00		527	28.08	1.00	1.00 (reference)
	Gain	5,991.71	115	19.19	1.61 (1.25−2.08)	1.6 (1.24−2.06)		289	48.23	1.19 (1.03−1.39)	1.19 (1.02−1.38)
Normal	Loss	1,799.26	27	15.01	1.66 (1.09−2.52)	1.47 (0.96−2.24)		97	53.91	1.46 (1.18−1.82)	1.34 (1.08−1.68)
	Stable	19,005.40	127	6.68	1.00	1.00		533	28.04	1.00 (reference)	1.00 (reference)
	Gain	4,230.90	66	15.60	1.71 (1.26−2.33)	1.86 (1.36−2.56)		144	34.04	1.07 (0.89−1.29)	1.18 (0.97−1.43)
Moderate-high	Loss	1,776.45	17	9.57	0.54 (0.3−0.96)	0.54 (0.3−0.98)		80	45.03	1 (0.74−1.36)	0.99 (0.73−1.34)
	Stable	7,012.40	64	9.13	1.00	1.00		160	22.82	1.00 (reference)	1.00 (reference)
	Gain	1,107.33	25	22.58	1.88 (1.16−3.04)	1.76 (1.08−2.88)		44	39.74	1.32 (0.93−1.86)	1.3 (0.91−1.84)
High	Loss	1,380.80	21	15.21	0.85 (0.5−1.43)	0.97 (0.56−1.68)		50	36.21	0.75 (0.54−1.04)	0.72 (0.51−1.01)
	Stable	4,565.99	53	11.61	1.00	1.00		133	29.13	1.00 (reference)	1.00 (reference)
	Gain	462.88	10	21.60	1.42 (0.71−2.83)	1.74 (0.86−3.52)		27	58.33	1.42 (0.94−2.13)	1.62 (1.06−2.47)
Female
Low	Loss	172.22	3	17.42	0.87 (0.27−2.8)	0.87 (0.27−2.83)		9	52.26	0.72 (0.37−1.42)	0.7 (0.36−1.37)
	Stable	5,617.06	88	15.67	1.00	1.00		303	53.94	1.00 (reference)	1.00 (reference)
	Gain	5,602.48	90	16.06	1.12 (0.83−1.52)	1.13 (0.83−1.54)		235	41.95	0.89 (0.74−1.06)	0.9 (0.75−1.07)
Normal	Loss	604.30	12	19.86	1.97 (1.07−3.63)	2.11 (1.14−3.9)		33	54.61	1.5 (1.04−2.15)	1.51 (1.05−2.17)
	Stable	9,799.53	85	8.67	1.00	1.00		322	32.86	1.00 (reference)	1.00 (reference)
	Gain	4,209.23	60	14.25	1.81 (1.29−2.55)	1.83 (1.29−2.58)		131	31.12	1.09 (0.88−1.34)	1.11 (0.9−1.37)
Moderate-high	Loss	2,190.81	21	9.59	0.58 (0.36−0.93)	0.59 (0.37−0.96)		91	41.54	0.8 (0.63−1.02)	0.78 (0.61−1)
	Stable	9,857.45	127	12.88	1.00	1.00		354	35.91	1.00 (reference)	1.00 (reference)
	Gain	3,142.10	50	15.91	1.45 (1.04−2.02)	1.46 (1.04−2.05)		103	32.78	1.09 (0.87−1.36)	1.12 (0.89−1.4)
High	Loss	2,023.34	22	10.87	0.81 (0.5−1.32)	0.83 (0.5−1.37)		55	27.18	0.87 (0.64−1.19)	0.87 (0.63−1.19)
	Stable	4,645.46	67	14.42	1.00	1.00		160	34.44	1.00 (reference)	1.00 (reference)
	Gain	1,076.92	22	20.43	1.16 (0.71−1.9)	1.18 (0.71−1.95)		59	54.79	1.27 (0.94−1.73)	1.33 (0.97−1.82)