Table 4. Changes in waist circumference from baseline to 3-year follow-up (row %).

	Follow-up (cm)
Baseline (cm)	<70		70 to <80		80 to <90		≥90		P value a
Females	n	%	n	%	n	%	n	%	<0.001
<70	228	50.1 b	179	39.3 c	41	9.0 c	7	1.5 c
70-<80	88	14.9 d	329	55.9 b	146	24.8 c	26	4.4 c
80-<90	25	4.6 d	98	26.7 d	177	48.2 b	75	20.4 c
≥90	6	4.1 d	20	13.6 d	40	27.2 d	81	55.1 b
Males									<0.001
<70	34	28.6 b	65	54.6 c	16	13.4 c	4	3.4 c
70-<80	26	6.4 d	216	52.9 b	136	33.3 c	30	7.3 c
80-<90	10	1.8 d	124	22.6 d	301	54.8 b	114	20.8 c
≥90	2	0.6 d	10	3.1 d	93	28.9 d	217	67.4 b

^a P value was calculated from signed-rank test between baseline and 3-year follow-up.

^b Maintained same WC category at baseline and follow-up.

^c Increased WC from baseline to follow-up.

^d Decreased WC from baseline to follow-up.