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Table 1 Baseline demographic characteristics

From: Longitudinal associations between infant movement behaviours and development

Characteristics

n

2 months

Infant age (days)

411

66.88 (6.12)

Infant sex

 Male

180

43.8

 Female

231

56.2

Infant race/ethnicity

 Caucasian

203

49.4

 Other

208

50.6

Number of siblings

 Zero

190

46.2

 One

157

38.2

 Two or more

64

15.6

 Non-parental care time (hours)

411

2.26 (11.95)

 Parental age (years)

411a

31.78 (5.32)

Parental marital status

 Married or living common-law

388

94.4

 Not Married or living common-law

23

5.6

Parental education

 Above bachelor’s degree

83

20.2

 Bachelor’s degree

142

34.5

 Below bachelor’s degree

186

45.3

Parental country of birth

 Canada

283

68.9

 Other country

128

31.1

  1. aMean imputation was performed for missing parental age at baseline (n = 5)
  2. Data presented as mean (standard deviation) for continuous variables and percentages for categorical variables