Table 1.

Variation in 24-h SPA levels across cohorts

Cohort, mo, yr*24 h SPA, min
July 201296.20 ± 4.34 (n = 32)a
October 201288.51 ± 4.28 (n = 32)a,b
March 2013102.52 ± 3.84 (n = 32)a
January 2014136.05 ± 7.02 (n = 48)c
September 201471.75 ± 6.46 (n = 31)b,d
March 2015107.63 ± 7.42 (n = 32)a
August 2015140.53 ± 8.09 (n = 32)a
  • Values are expressed as means ± SE.

  • * Indicates month and year cohort was purchased, and 24-h spontaneous activity (SPA) was measured.

  • Superscript lowercase letters indicate significant difference between cohorts for pairwise comparisons.