Table A.5
Children's characteristics at ages 0 to 1 by response status in attrition analysis

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Socio-demographic characteristics First-born children whose biological mother was the PMK at Cycle 1 Group 3: Children in study sample4 (n=3,382)
Group 1: Children lost to attrition (n=625) Group 2: Children whose biological mother not PMK over time (n=396)
1. p < .05.
2. p < .01.
3. p < .001.
4. Because the weighting strategy differs for the non-response analysis compared to the main analysis, these estimates will not match exactly those presented in the main body of the paper.
Note: Comparisons by response category are made against Group 3 respondents.
Table source: Statistics Canada, 2008, "The Children of Older First-time Mothers in Canada: Their Health and Development", Children and Youth Research Paper Series, Catalogue number 89-599-M.
Maternal age group, %
Teenaged (younger than 20) 13.83 5.0 6.6
Young (ages 20 to 24) 28.01 20.6 22.2
Reference (ages 25 to 29; Ref.) 31.4 36.9 35.6
Middle (ages 30 to 34) 17.12 26.2 24.6
Older (ages 35 or older) 9.7 11.3 11.1
Child is male, % 47.3 57.4 51.7
Mother's education is high school or less, % 33.93 25.9 20.7
Low-income household, % 25.43 12.4 17.0
Mother is single parent, % 23.33 5.63 12.3
Prenatal and perinatal
Gestational diabetes, % 3.22 7.5 5.8
Gestational hypertension, % 10.8 13.8 13.9
Smoked throughout pregnancy, % 17.22 9.6 10.9
Caesarean delivery, % 20.5 29.1 24.4
Preterm birth, % 11.5 9.1 12.3
Low birth weight, % 7.6 9.3 7.4
Health
Child required special care at birth, % 19.2 18.5 20.3
Child diagnosed with asthma, % 5.4 2.1 3.4
Child's general health was excellent or very good, % 92.7 91.01 93.1
Mother's depressive symptoms, mean 4.71 4.0 3.9
Child's motor and social development score, mean 101.8 99.4 100.1