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. 2025 Jun 30;122(27):e2420846122. doi: 10.1073/pnas.2420846122

Table 1.

Primary study (WHOOP) participant characteristics

Variable Mean ± SD No. (%)
Total 19,963 (100)
Gender
   Women 5,203 (26.06)
   Men 14,760 (73.94)
Age, y 38.44 ± 10.74
   18–44 14,475 (72.51)
   44–64 5,129 (25.69)
   64–87 359 (1.80)
Weight, KG 81.41 ± 16.23
   Women, KG 67.88 ± 13.26
   Men, KG 86.17 ± 14.43
Height, CM 176.39 ± 9.42
   Women, CM 165.82 ± 7.06
   Men, CM 180.12 ± 7.02
BMI (KG/M2) 26.09 ± 4.19
   Women, (KG/M2) 24.76 ± 4.56
   Men, (KG/M2) 26.55 ± 3.95
Sleep variables
   Sleep duration (h) 6.93 ± 0.63
   Sleep onset timing (hh:mm) 23.16 ± 1.18
PA variables
   Days of data 323.91 ± 38.80
   MVPA duration 90.58 ± 52.45
   Overall PA duration 365.81 ± 103.88

Note. SD: standard deviation; No.: number; y: years; KG: kilogram; CM: centimeter; h: hours.