Table 1 | HRS cohort, BMI classification: Transitions and CMM incidence
Transition	N	%	Events	Person-years	IR per 1000
Normal → Normal	564	16.07	39	5,530	7.05
Normal → Obesity	17	0.48	1	170	5.88
Normal → Overweight	190	5.41	16	1,870	8.56
Obesity → Normal	6	0.17	1	56	17.86
Obesity → Obesity	1234	35.16	192	11,660	16.47
Obesity → Overweight	153	4.36	20	1,460	13.70
Overweight → Normal	144	4.10	19	1,376	13.81
Overweight → Obesity	250	7.12	22	2,402	9.16
Overweight → Overweight	952	27.12	99	9,196	10.77