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. Author manuscript; available in PMC: 2011 Oct 12.
Published in final edited form as: Aging Ment Health. 2008 Sep;12(5):605–614. doi: 10.1080/13607860802343084

Table 1.

Frequencies and Percentages by Age at First Birth

US Health and Retirement Study British 1946 Cohort Study
Overall Age at first birth Overall Age at first birth
<=20 21-24 25+ <=20 21-24 25+
US measure: CES-D score (mean) 9.0 9.7 8.7 8.4
British measure: GHQ-28 score (mean) 3.1 3.9 2.5 3.1
N. health conditions (mean) 2.5 2.8 2.3 2.2 1.2 1.4 1.2 1.1
Disability score (mean) 7.7 9.2 7.0 6.8 0.7 1.0 0.6 0.6
Age at first birth (percent)
 20 or younger 37.3% 25.7%
 21-24 35.9% 38.1%
 25 and older 26.8% 36.2%
Number own children (mean) 3.2 3.8 3.2 2.3 2.3 2.7 2.3 2.0
Number step children (mean) 0.3 0.4 0.3 0.3
Race/ethnicity (percent)
 white 81.9% 77.0% 86.1% 83.0%
 black 10.3% 15.1% 7.2% 7.7%
 Hispanic-English IW 3.2% 3.4% 3.0% 3.2%
 Hispanic-Spanish IW 2.1% 2.4% 1.8% 2.0%
 other 2.6% 2.1% 2.0% 4.0%
Years in US (percent)
 US born 91.1% 94.4% 92.1% 85.1%
 30 or more years 3.9% 2.6% 4.0% 5.7%
 11-29 years 4.0% 2.1% 3.2% 7.9%
 10 or fewer years 1.0% 1.0% 0.7% 1.4%
Father’s education (percent)
 0-5 years 12.9% 15.6% 10.8% 11.8%
 6-8 years 30.9% 30.5% 32.9% 28.6%
 9-11 years 12.2% 13.3% 11.5% 11.8%
 12 years 20.6% 17.5% 22.3% 22.4%
 13 or more years 11.5% 6.9% 12.4% 16.7%
 missing 12.0% 16.2% 10.1% 8.7%
Father’s occupation: manual (percent) 73.7% 83.4% 78.0% 62.4%
Education (mean) 12.2 11.3 12.5 13.2
Education Qualifications (percent)
 none 44.0% 66.5% 44.8% 27.2%
 O-level 35.4% 29.1% 39.9% 35.2%
 A-level or more 20.5% 4.4% 15.2% 37.6%
Unmarried at first birth (percent) 11.4% 16.4% 8.4% 8.3% 6.0% 10.3% 4.4% 4.6%
Midlife measures
 Income (mean, in 1000s) 49.4 39.7 53.3 57.7 23.2 19.3 23.3 25.9
 Manual occupation (percent) 32.0% 44.0% 27.0% 22.0% 50.2% 69.2% 51.5% 35.5%
 Living with partner (percent) 74.7% 73.0% 76.4% 75.0% 84.0% 82.6% 84.4% 84.5%
 Own home (percent) 82.7% 79.0% 85.0% 84.0% 86.4% 77.7% 88.1% 90.8%
 Currrently employed 62.6% 58.1% 65.5% 62.0% 76.9% 70.9% 76.2% 81.9%
 Neighbors known by name (mean) 2.4 2.4 2.4 2.4
 Socialize with neighbors (mean) 3.6 3.6 3.6 3.6
 Receive help in crisis 1.1 1.1 1.2 1.2
Number of Observations 4430 1062