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

Table 2 Effects of the lockdown on step counts of participants (n = 815)

Bandwidth	Observations (person-day)	β (SE) (steps/day)	p-value
IK-bandwidth	32,424	− 2158 (126.20)	<.001
Half- bandwidth	15,973	− 1839 (139.38)	<.001
Double- bandwidth	54,374	− 2253 (120.87)	<.001

IK, Imbens and Kalyanaraman; SE, Standard Error
Models are adjusted for age, sex, education, income, marital status, intervention group allocation, baseline physical activity and body mass index
All models use robust standard errors with participant ID as a cluster unit

ISSN: 1479-5868