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. Author manuscript; available in PMC: 2014 Jan 1.
Published in final edited form as: Child Dev. 2012 Aug 29;84(1):178–197. doi: 10.1111/j.1467-8624.2012.01840.x

Table 1.

Maternal Employment and Demographic Characteristics of the Sample (n=444)

Full sample n=444 Ever employed n=325 Non-employment n=119 First emp 0–8 mths n=222 First emp 9–23 mths n=103
Employmenta
  Never employed 20.98% - - - -
  Ever employed 79.02% - - - -
  First emp 0–8 Months 50.76% 64.23% - - -
  First emp 9–23 Months 28.26% 35.77% - - -
 Intensity of first employment
  Part Time 22.34% 25.66% - 28.35% 28.13%
  Full Time 55.98% 74.34% - 71.50% 71.87%
Employment History Covariates
 Employed year before birtha 46.51% 55.57%A 12.36%Aab 68.80%ac 31.82%bc
 Employed recently at W3a 59.03% 66.86%A 29.51%Aab 69.97%a 61.28%b
Child Characteristics
 Age of Child (in months) 12.64(6.78) 12.48(6.72) 13.22(6.98) 12.08(6.83) 13.20(6.46)
 Boya 48.14% 48.62% 46.35% 43.11% 58.51%
 Racea
  African American 42.08% 43.69% 35.95% 41.65% 47.37%
  Hispanic 54.98% 53.56% 60.35% 56.28% 48.68%
  White 2.94% 2.75% 3.70% 2.07% 3.95%
 Developmental delay at birtha 28.66% 27.46% 33.21% 28.71% 25.19%
 Child was low birthweighta 5.46% 4.51% 9.07% 4.26% 4.95%
 Child carea
  Formal Care 25.14% 28.15%A 13.82%Aa 29.21%a 26.23%
  Informal Care 33.34% 38.28%A 14.72%Aab 35.08%a 44.03%b
  Mother Care 41.52% 33.57%A 71.46%Aab 35.71%a 29.74%b
Maternal Characteristics
 Age of Mother (in years) 25.38(6.93) 24.84(5.93) 27.43(9.56)a 25.65(6.22)b 23.39(5.06)ab
 Educationa
  Less than high school 35.01% 30.86%A 50.66%Aa 19.60%ab 51.08%b
  High school graduate or GED 27.66% 27.72% 27.43% 28.61% 26.13%
  Greater than high school 37.33% 41.42%A 21.91%Aa 51.79%ab 22.79%b
 Mother cognitive skills 89.65(16.67) 91.24(14.76)A 83.65(21.42)Aa 93.39(14.33)ab 87.35(14.75)b
 Fluent in Englisha 90.79% 94.28%A 77.67%Aab 95.33%a 92.39%b
 Marrieda 26.25% 25.77% 28.05% 28.32% 21.19%
 Number of Children in Household 2.63(1.57) 2.58(1.62) 2.81(1.35) 2.35(1.38) 2.98(1.91)
 Welfare in last 2 yearsa 51.71% 51.83% 51.25%a 40.26%b 72.62%ab
 Working spousea 18.32% 16.03% 26.92% 15.23% 17.47%
 Income-to-Needs W1 0.88(0.57) 0.92(0.57)A 0.72(0.53)Aa 0.99(0.59)ab 0.79(0.53)b
Child Characteristics W3
 Reading Skills 103.60(19.49) 103.78(18.86) 102.95(21.70) 105.32(19.64) 101.00(17.05)
 Math Skills 97.73(20.08) 98.44(20.10) 95.07(19.83) 98.72(19.91) 97.93(20.43)
 Affective Problems 55.12(7.20) 54.80(7.09) 55.82(56.34) 54.60(7.06) 55.15(7.13)
 Anxiety Problems 55.06(6.38) 54.50(6.07)A 57.17(7.06)Aa 54.24(5.78)a 54.98(6.53)
 Somatic Problems 55.47(7.06) 55.01(6.80) 57.22(7.72)a 55.53(7.12) 54.07(6.09)a
 Hyperactivity Problems 56.56(7.16) 55.24(6.99) 56.80(7.64) 54.82(6.37) 55.99(7.93)
 Oppositional Problems 56.46(7.13) 55.16(6.92) 56.59(7.78) 54.54(6.51) 56.27(7.46)
 Conduct Problems 55.81(8.03) 54.93(7.32)A 59.15(9.56)Aa 54.51(7.18)a 55.68(7.51)
a

Proportions

Note: Within each row, groups sharing superscript letters are different from each other at the p<.05 level. Uppercase letters denote differences between ever employed and never employed. Lowercase letters denote differences between never employed, first emp 0–8 months, and first emp 9–23 months.