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Table 1 Participants characteristics at baseline (n = 815)a

From: How COVID-19 lockdown and reopening affected daily steps: evidence based on 164,630 person-days of prospectively collected data from Shanghai, China

Variables n (%)*
Age (year)
 20–29 117 (14.4)
 30–39 309 (38.1)
 40–49 259 (31.9)
 50+ 126 (15.5)
Sex
 Male 285 (35.0)
 Female 530 (65.0)
Education
 High school graduate or below 161 (19.9)
 Vocational training 154 (19.0)
 University or higher 496 (61.2)
Marital status
 Married 672 (83.3)
 Single/divorced/widowed 135 (16.7)
Body Mass Index (kg/m2)
 Low risk (< 23) 387 (47.8)
 Increased risk (23–27.4) 318 (39.3)
 High risk (≥27.5) 105 (13.0)
Body fat percentage
 Lower risk (≤20% for men and ≤ 30% for women) 263 (32.8)
 Higher risk (> 20% for men and > 30% for women) 539 (67.2)
Baseline physical activity levels
 Insufficient (< 1000 METb minutes/week) 256 (33.2)
 Sufficient (≥1000 METb minutes/week) 514 (66.8)
  1. aSample sizes for some variables deviated slightly from 815 due to missing data. Participants with missing data: age (n = 4), education (n = 4), martial status (n = 8), BMI (n = 5), body fat (n = 13), baseline physical activity (n = 45). bMET = metabolic equivalent
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