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. 2022 May 4;5(5):e2210450. doi: 10.1001/jamanetworkopen.2022.10450

Figure. Study Design for Rotating Night Shift Work and Healthy Aging in the Nurses’ Health Study.

Figure.

Participants who were free of major chronic diseases in 1988 were followed up for 24 years in the primary analysis (1988-2012; n = 46 319; age range at baseline, 46-68 years) and for 12 years in the secondary analysis (1988-2000; n = 14 273; age range at baseline, 58-68 years).