Skip to main content

Table 1 Characteristics for the included participants (n = 77)

From: Associations between objective measures of physical activity, sleep and stress levels among preschool children

 nOverall
Median (range)
nBoys
Median (range)
nGirls
Median (range)
p-value §
Age (years)775.6 (3.1–7.3)485.7 (3.1–7.3)295.3 (3.5–6.9)0.12
Sleep latency (min)6813.8 (0.0–57.5)§4413.3 (0.0–57.5)2414.0 (0.0–38.0)0,90
Sleep duration (hours)688.7 (6.3–11.3)§448.7 (6.5–11.3)§248.7 (6.3–10.2)§0.50
Sleep efficiency (%)680.81 (0.69–0-94)440.81 (0.69–0.94)240.81 (0.74–0.92)0.49
Cortisol levels (pg/mg)72109 (7–890)45116 (7–890)2793 (8–291)0.21
PA levels (CPM)543080 (342–5282)353293 (341–5282)192483 (563–4158)0.06
  1. Abbreviations: PA: Physical activity; min: minutes; CPM: Counts per minute
  2. §P-value for gender difference (Wilcoxon rank-sum test)