Table 1.

Lifestyle Behavior Regularity Indices on Dayshift and Nightshift

Indices	Sleep regularity	Physical activity regularity	Mealtime regularity	Behavior regularity
Circadian alignment
In-class/day shift (N = 7)	70.3 (64.6, 77.1)	63.5 (61.2, 67.7)	84.5 (82.4, 88.5)	1.00 (1.00, 1.00)
Field-based/day shifts A (N = 5) and B (N = 2)	64.9 (55.1, 69.9) —	63.4 (56.6, 67.8) —	84.1 (76.8, 91.0) —	1.00 (0.82, 1.00) —
Within-group p-values	0.578	0.297	0.375	0.250
Circadian misalignment
In-class/day shift (N = 11)	56.8 (48.2, 69.0)	60.9 (56.7, 65.5)	85.5 (83.6, 86.5)	1.00 (1.00, 1.00)
Field-based/night shifts C (N = 5) and D (N = 6)	46.6 (42.6, 56.7) —	59.0 (52.7, 62.1) —	49.2 (35.3, 74.0) —	0.00 (0.00, 0.24) —
Within-group p-values	0.042*	0.365	0.001*	0.001*
Between-group p-values	0.342	0.751	<0.001*	<0.001*

Values are presented as median (Q1, Q3). *p ≤ 0.05.

Within-group p-values from Wilcoxon signed rank tests applied to within-group differences.

Between-group p-values from Kruskal–Wallis test of equality of within-group differences.