Weight Mobility and Obesity in a Representative Sample of the US Adult Population

Table 2

Mean (SD) change in BMI in one year by progression and age category.

Baseline (2012)	One-year follow-up (2013)
	Normal weight	Overweight	Class 1	Class 2 or 3
Normal weight
Age < 25	0.18 (1.8)	3.70 (2.0)
Age 25–49	0.01 (1.5)	2.67 (1.9)	7.6 (3.2)
Age 50–74	−0.12 (1.4)	2.54 (1.9)	8.2 (3.5)
Age > 75	−0.10 (1.5)	2.89 (1.8)
Overweight
Age < 25	−3.35 (2.2)	0.09 (1.5)	3.32 (1.7)
Age 25–49	−2.86 (2.1)	0.05 (1.3)	2.83 (1.6)	10.8 (5.3)
Age 50–74	−2.81 (2.3)	−0.02 (1.2)	2.66 (1.7)	9.9 (3.8)
Age > 75	−2.69 (1.4)	−0.20 (1.4)	2.73 (1.7)
Class 1
Age < 25		−3.54 (2.0)	0.14 (1.7)	4.41 (2.6)
Age 25–49		−2.96 (1.8)	0.12 (1.4)	4.54 (3.7)
Age 50–74		−2.66 (1.6)	0.03 (1.4)	3.71 (2.4)
Age > 75		−2.47 (1.6)	−0.16 (1.2)
Class 2 or 3
Age < 25			−4.16 (2.6)	0.43 (4.0)
Age 25–49		−11.3 (6.2)	−4.3 (3.5)	0.44 (3.8)
Age 50–74			−3.86 (3.3)	0.26 (3.8)
Age > 75			−2.92 (2.1)	−0.28 (3.7)

Cell count 20 or less. Not significantly different from zero ().