Table 2

Child and household characteristics, by cohort

ECLS-K
(USA)
MCS
(UK)
LSAC-K (Australia)GenerationR (The Netherlands)ABIS (Sweden)
Analytic sample size949512 523424336327170
Child age, months, mean (SD)68.8 (4.3)62.6 (2.9)57.0 (2.6)72.6 (3.3)64.5 (3.5)
Sex, n girls (%)4606 (48.0%)6097 (48.8%)2082 (48.7%)1837 (50.6%)3408 (47.5%)
Height, cm, mean (SD)113.6 (5.4)110.6 (4.9)108.5 (4.7)118.9 (5.2)114.1 (5.2)
Highest parent education level, n (%)
Level 1 (lowest)132 (3.8%)1791 (13.7%)280 (8.1%)168 (4.8%)144 (2.0%)
 Level 2250 (23.5%)5259 (42.3%)1042 (25.6%)741 (21.1%)1344 (18.9%)
 Level 3633 (36.9%)1362 (11.1%)1374 (34.4%)908 (25.8%)2246 (31.6%)
Level 4 (highest)597 (35.9%)3936 (32.9%)1527 (31.9%)1701 (48.4%)3371 (47.5%)
Household income, 2005 PPP$*
 Mean (SD)69 570 (48,309)41 823 (26,163)44 958 (22,182)46 172 (17,092)43 216 (16,196)
 Median58 62036 42843 54044 28141 954
  • Note: n are unweighted; % are weighted in all cohorts except GenerationR and ABIS.

  • *measured before tax in ECLS-K; measured after tax in MCS, LSAC-K, GenerationR and ABIS. Converted to PPP$ at 2005 prices.

  • ABIS, All Babies in Southeast Sweden; ECLS-K, Early Child Longitudinal Study K cohort; GenerationR, Generation R Study; LSAC-K, Longitudinal Study of Australian Children K cohort; MCS, Millennium Cohort Study; PPP$, purchasing power parity dollars.