Table 1.

Baseline characteristics.

	Values
Social jetlag in minutes, mean (SD)	21.6 (17.8)
Sex, n (%)
Female	39 (50.0%)
Male	39 (50.0%)
Age, n (%)
< 12 months	16 (20.5%)
12–35.9 months	21 (26.9%)
36–72 months	41 (52.6%)
Age in months, mean (SD)	35.1 (20.5)
Family income (CAN$), n (%)
< 60,000	4 (5.1%)
60,000–99,999	12 (15.4%)
100,000–149,999	24 (30.8%)
≥ 150,000	38 (48.7%)
Siblings, n (%)
No	30 (38.5%)
Yes	46 (59.0%)
Missing	2 (2.5%)
School status, n (%)
No school	35 (44.9%)
Daycare/preschool	37 (47.4%)
Missing	6 (7.7%)
Child ethnicity, n (%)
European	46 (59.0%)
Non-European	20 (25.6%)
Missing	12 (15.4%)
Maternal ethnicity, n (%)
European	49 (59.3%)
Non-European	20 (25.6%)
Missing	9 (11.5%)
Maternal educational level, n (%)
High school/apprenticeship/trade	2 (2.6%)
College or university	76 (97.4%)
Currently breastfeeding, n (%)
No	47 (60.3%)
Yes	13 (16.7%)
Missing	18 (23.0%)

n = 78. CAN$ = Canadian dollars, SD = standard deviation.