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

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

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 MET^b minutes/week)	256 (33.2)
Sufficient (≥1000 MET^b minutes/week)	514 (66.8)

^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

ISSN: 1479-5868