Daily sedentary time and physical activity as assessed by accelerometry and their correlates in older adults

Table 4 Adjusted means across four combined sedentary time and (light-high to vigorous intensity^a) physical activity profiles in 1201 LASA participants

	High sedentary Low PA	High sedentary High PA	Low sedentary Low PA	Low sedentary High PA	P-value
N	N = 490	N = 110	N = 110	N = 491
Men	244 (50%)	79 (72%)	33 (30%)	230 (47%)
Women	246 (50%)	31 (28%)	77 (70%)	261 (53%)
Adjusted means
Age (years)	72.4 (71.7–73.1)^b	69.1 (67.7–70.5)	72.2 (70.7–73.6)	68.9 (68.2–69.5)	< 0.001
BMI (kg/m²)	23.4 (23.0–23.7)	22.9 (22.2–23.6)	22.9 (22.2–23.7)	22.5 (22.1–23.7)	0.017
6 m walk test (sec)	7.4 (7.1–77)	6.3 (5.7–6.9)	7.7 (7.1–8.3)	7.1 (6.8–7.4)	0.002
Light-low (%)	21.8 (21.4–22.2)	20.6 (19.8–21.4)	30.9 (30.1–31.7)	27.5 (27.1–27.9)	< 0.001

PA physical activity, adjusted means: estimated with analysis of covariance
^a≥760 cpm which includes light-high, moderate and vigorous intensity activity, expressed as percentage of total wear time
Categorization based on median: sedentary < 100 (cpm) < 65.4/≥65.4% and Light high ≥760 (cpm) < 9.1/≥9.1% out of total wear time
^bANCOVA: analysis of covariance with 95% confidence intervals. Significant P < 0.05 when no overlap occurs in 95% confidence interval between categories
Adjusted for sex, education categories, age, BMI and 6 m walk test

ISSN: 1861-6909