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Table 4 Basic statistics by Korea Longitudinal Study of Women and Families (KLoWF)

From: The impact of expected child-rearing expenses on childbirth based on the matching of two Korean panel data

  2007 2008 2010 2012
(1) (2) (3) (1) (2) (3) (1) (2) (3) (1) (2) (3)
Original respondent attrition rate (%)     83.67    80.02    76.60   
Number of respondents (N) 9997 6115 198 8364 4894 121 8000 4173 116 7658 3646 7
Age (%)
 18–29 17.63 23.39 50.00 14.16 20.25 19.83 10.90 16.80 22.41 10.73 17.44 18.3
 30–39 31.07 50.79 49.49 30.07 51.39 76.86 25.95 49.75 74.14 20.42 42.90 78.8
 40–49 22.73 25.82 0.51 23.54 28.36 3.31 25.11 33.45 3.45 26.33 39.66 2.8
 More than 50 28.58    32.23    38.04    42.52   
 N 9997 6115 198 8364 4894 121 8000 4173 116 7658 3646 7
Education (%)
 Less than college 77.80 68.01 66.67 78.66 67.33 57.02 78.70 65.59 62.07 78.45 63.88 63.3
 College graduate 22.20 31.99 33.33 21.34 32.67 42.98 21.30 34.41 37.93 21.55 36.12 36.6
 N 9993 6112 198 8361 4892 121 7999 4173 116 7657 3646 7
Currently married (%)
 Not married 12.26 17.76 0.00 10.25 16.92 0.83 20.30 21.64 0.00 22.12 23.92 0.0
 Married 87.74 82.24 100.00 89.75 83.08 99.17 79.70 78.36 100.00 77.88 76.08 100.0
 N 9997 6115 198 8364 4894 121 8000 4173 116 7658 3646 7
Work status (%)
 Working 42.86 38.68 21.72 47.33 42.75 18.18 52.04 48.66 31.03 54.64 52.30 22.5
 Not working (%) 57.14 61.32 78.28 52.67 57.25 81.82 47.96 51.34 68.97 45.36 47.70 77.4
 N 9997 6115 198 8363 4894 121 7998 4172 116 7658 3646 7
Husband’s age (%)
 18–29 2.46 4.00 21.72 1.48 2.51 6.72 0.64 1.22 7.83 0.40 0.85 7.1
 30–39 23.71 38.58 72.73 21.93 37.29 81.51 16.76 31.99 80.00 12.10 25.44 80.0
 40–49 22.66 33.11 4.55 23.78 36.84 10.92 24.14 41.82 12.17 23.61 45.09 12.8
 More than 50 51.17 24.31 1.01 52.81 23.35 0.84 58.45 24.97 0.00 63.89 28.63 0.0
 N 9769 6001 198 8184 4813 119 7803 4089 115 7449 3542 7
Husband’s education (%)
 Less than college 53.56 44.69 51.01 55.21 45.05 39.50 54.90 43.59 46.09 54.01 42.50 50.0
 College graduate 46.44 55.31 48.99 44.79 54.95 60.50 45.10 56.41 53.91 45.99 57.50 50.0
 N 9969 6095 198 8344 4881 119 7976 4159 115 7637 3635 7
Husband’s work status (%)
 Working 87.33 93.83 95.41 83.76 90.15 95.76 87.76 95.11 94.78 79.72 97.82 84.2
 Not working 12.67 6.17 4.59 16.24 9.85 4.24 12.24 4.89 5.22 20.28 2.18 15.7
 N 7884 4796 196 6742 3897 118 6388 3272 115 5976 2475 7
  1. (1): total sample, (2): fertility cohort (female age 19–39) and (3): fertility subsample (Those among fertility cohort who had pregnancy between current Md next survey. For example, (3) for 2007: 2007; (3) for 2008: 2008 and 2009). Fertility subsample of the fourth survey includes those who are pregnant at the time of the survey. Omitted entries are either omitted by definition or because there are too few observations to be meaningful