Table 2.

Descriptive Characteristics of Age 42 Sample: NCDS, 1958-2000 (N=10,590)^a

Variables
Maternal Health Behaviors and Child Health
Low birthweight	5
Mother smoked heavily after month four	13
Mother smoked "medium/variable" amount	21
Breastfed as infant	68
Health Problem at Age 7	3
Health Problem at Age 11	4
Health Problem at Ages 11 and 7	1
Health Problem at Age 16	10
Health Problem at Ages 16 and 11	1
Health Problem at All Ages	1
Missing full childhood health information	1
Child Characteristics
Sex (male=1)	52
Average childhood class	skilled manual
Mother's 1958 marital status	96
Maternal grandfather's 1958 social class	skilled manual or non-manual
Age mother finished school	15-16 years old
Age father finished school	15-16 years old
Average num. of children in household	1.77
Average childhood access to basic resources	sole use of one facility
Average 1974 Family income	5.04
Mother's average paid work status	0.55
Average num. of moves during childhood	1.63
Adult Characteristics
NVQ Level at age 23	2
NVQ Level at age 33	2.66
NVQ Level at age 42	2.69
NVQ Level at age 46 (N=8,251)	2.8

^aNumbers in cells are percentages unless mean is indicated.