However, because the CHDS
is a birth cohort study, none of these papers are able to examine how youth activity has been changing over time in New Zealand.
This suggests that the analysis sample for the current study represents a slightly more advantaged subgroup of the total CHDS
sample, with higher family socioeconomic status and higher levels of maternal educational achievement than the excluded sample.
In contrast, the CHDS
results are based on a representative birth cohort of children born in Christchurch in 1977.
Thesis topics at CHDS
have ranged from emergency response to communications interoperability to the effectiveness of the color-coded national alert system.
The present study of prenatal DDT exposure and adult hypertension used data collected for a cohort study of early-life predictors of breast density that was nested within the CHDS
The study's data is drawn from the CHDS
, a landmark and ongoing prospective study, which collected information and biological specimens from 1959 to 1967 from pregnant Kaiser Permanente Health Plan members in the Oakland vicinity.
This information was then combined with a range of other measures extracted from the wider CHDS
is a longitudinal study of a birth cohort of 1,265 children born in the Christchurch (New Zealand) urban region in mid-1977.
However, two analyses of the CHDS
, which was conducted around the same time as the CPP, have found no associations of DDT/DDE and preterm delivery or small for gestational age, despite slightly higher median DDE levels than in the CPP (43 vs.
In this study we have used data gathered over the course of a 25-year longitudinal study, CHDS
, to examine ethnic differences in rates of intimate partner violence victimisation and perpetration.
Although the CHDS
is based on a birth cohort of 1265 children, the analyses reported in this paper were based on a sample of 657 children.
Subjects were participants in the CHDS
, residents of the Oakland (California) area, and members of the Kaiser Permanente Health Plan who sought obstetric care between 1959 and 1967 (van den Berg et al.