Table 1

Descriptive statistics of analytic and CARDIA sample* across follow-up (1985/1986–2010/2011)

BaselineExamination year 25p Value†
Individual-level exposures (% or mean (SD))
 White (%)43.930.9<0.001
 Female (%)58.167.7<0.001
 Education (%)53.958.20.01
 Age (years) (mean (SD))24.8 (3.7)50.1 (3.8)<0.001
Neighbourhood-level exposures (mean (SD))
 Neighbourhood deprivation score0.56 (0.88)0.63 (1.02)0.03
 Percentage white population51.9 (29.6)38.8 (29.5)<0.001
 Percentage population ≤18 years25.0 (9.1)22.9 (7.2)<0.001
 Percentage rental properties57.4 (22.3)43.7 (18.2)<0.001
 Home price index41.2 (5.8)139.0 (21.1)<0.001
  • *The analytic sample only included participants who remained in the four baseline CARDIA cities at any given examination year, with a total of 4314, 2461, 1727, 1480, 1202 and 1119 participants at baseline and examination years 7, 10, 15, 20 and 25, respectively.

  • †One-way ANOVA was used to test whether the difference between values at baseline and examination year 25 was statistically significantly different from one another.

  • ANOVA, analysis of variance; CARDIA, Coronary Artery Risk Development in Young Adults.