NSFH

ECLS-K

ECLS-B

NHES

NSECH

NS-CSHCN

2001–2002

2002

2001

2003

2000

2000–2002

1987–1988

1998–1999

2001

1991

2000

2000–2002

NICHD/ NIA

NCES

NCES

NCES

CDC/AAP

MCHB

3 waves: 5 and 8 years

Fall and Spring K and 1st. Spring 3rd and 5th.

5 waves: 9 months to 6 years

Approx. every 2 years

One time

One time

L

L

L

CS

CS

CS

N = 2,500 children

N = 22,000 children

N = 10,700 children

Varies: N = 7,000–

N = 2,068 children

N = 37,500 children

 

22,000

 

 

 

 

<18 years

5–10 years

9 months to 6 years

Varies: but always includes <18 years

4–35 months

<18 years

Child and adult

Adult, child, school records

Adult, child, child care provider, observation, and birth certificate

Adult and adolescent

Adult

Adult

CS = Cross-sectional study design

L = Longitudinal study design

aPrior to 1996, the MEPS was conducted in 1977 and 1987.

bThe NSLY was started in 1979 with an original cohort of 12,686 children ages 14–22 that was interviewed annually until 1994. In this review, we focus only on a more recent and separate NSLY cohort study that began in 1997.



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