Table 1:

Baseline characteristics of study cohort stratified by quartile of step counts

Mean (SD) or N / %	Cohort N=373	Quartile 1 N=94	Quartile 2 N=93	Quartile 3 N=93	Quartile 4 N=93
Age	84.0 (3.9)	85.6 (4.4)	84.8 (4.2)	83.2 (3.1)	82.3 (3.0)
Body Mass Index	26.9 (3.8)	27.7 (4.1)	27.4 (4.0)	26.7 (3.3)	25.7 (3.3)
Self-reported PA (PASE score)	127.0 (67.4)	88.9 (59.7)	113.4 (55.4)	147.9 (63.1)	158.5 (67.8)
Total energy expenditure (kcal)	2211 (400)	1962 (289)	2089 (316)	2293 (332)	2499 (427)
Sedentary time (min)	851.2 (112.4)	900.2 (109.3)	880.1 (90.3)	838.7 (97.6)	785.4 (116.0)
Active time (min)	71.6 (59.3)	24.0 (16.8)	48.9 (29.4)	82.0 (41.4)	132.0 (68.7)
Non-Hispanic White	328 (87.9)	89 (94.7)	80 (86.0)	81 (87.1)	78 (83.9)
College education	226 60.6%	54 57.5%	53 57.0%	64 68.8%	55 59.1%
Regular alcohol intake (1–5 drinks/week)	96 25.7%	22 23.4%	25 26.9%	25 26.9%	24 25.8%
Regular alcohol intake (6+ drinks/week)	84 22.5%	11 11.7%	27 29.0%	25 26.9%	21 22.6%
Ever smoker	209 56.0%	53 56.4%	57 61.3%	53 57.0%	46 49.5%
Comorbidity score	1.98 (1.37)	2.45 (1.55)	1.94 (1.36)	1.97 (1.22)	1.58 (1.20)
Statin Use	213 57.1%	58 61.7%	49 52.6%	55 59.1%	51 54.8%
Western Dietary score	−0.06 (1.05)	0.05 (1.09)	0.02 (1.09)	−0.15 (0.87)	−0.17 (1.15)
Prudent Dietary score	0.01 (1.04)	0.02 (1.18)	−0.02 (0.93)	−0.02 (0.89)	0.05 (1.16)
Shannon Diversity	3.4 (0.6)	3.5 (0.6)	3.4 (0.6)	3.4 (0.6)	3.4 (0.6)
Inverse Simpson	16.3 (9.9)	15.8 (9.4)	17.4 (11.5)	15.5 (8.6)	16.5 (9.8)

Bold font indicates association between quartile and variable with p ≤ 0.05

Italic font indicates association between quartile and variable with p <0.001, consistent with correlation of PA measures. Missing variables: alcohol use (n=2), dietary variables (n=7).

Q1:30–2499 steps, Q2:2520–4226 steps, Q3: 4339–6447 steps, Q4:6455–18688 steps