Table 2.

Associations of Baseline and 10-y Change in Activity Categories with 10-y Weight Change (kg) in Middle-aged Adults in CARDIA (n=886)

		Model 1 (baseline + covariates)		Model 2 (Model 1 + 10-y change)
	SD	std. β	p-value	std. β	p-value
Total Activity
Mean Total Activity (cpm)
Baseline	140	−0.96	0.001	−1.40	<0.001
10-yr change	153	-		−0.89	0.004
Simple Activity Category*
SB, min/day
Baseline		Reference		Reference
10-yr change
LPA, min/day
Baseline	111	−0.54	0.057	−0.80	0.013
10-yr change	96	-	-	−0.41	0.176
MVPA, min/day
Baseline	24	−0.74	0.011	−1.07	0.001
10-yr change	24	-	-	−0.75	0.012
Bouted Activity Category*
Long-bout SB, min/day
Baseline		Reference		Reference
10-yr change
Short-bout SB, min/day
Baseline	71	0.11	0.792	−0.11	0.819
10-yr change	73	-	-	−0.05	0.898
LPA, min/day
Baseline	85	−0.80	0.025	−1.11	0.005
10-yr change	89	-	-	−0.55	0.103
Short-bout MVPA. min/day
Baseline	13	0.05	0.871	0.05	0.906
10-yr change	13	-	-	−0.12	0.744
Long-bout MVPA, min/day
Baseline	19	−0.89	0.002	−1.20	<0.001
10-yr change	20	-	-	−0.74	0.012

Adjustment covariates include baseline weight, height squared, center, age, sex, education, and baseline lifestyle habits (smoking, energy intake) and comorbidities, and baseline accelerometer wear time.

^*Analyses were additionally adjusted for all other activity categories; std. β coefficients represent the expected associations when replacing long-bout SB per each SD increment of the independent variable.