Table 1.
Baseline Characteristics, Correlation of Continuous Variables, and Concordance of Categorical Variables Within 3,889 Spouse Pairs, Atherosclerosis Risk in Communities Study, 1987–1989
| Characteristic | Individual |
Paired Concordancea |
Correlationb | ORc | 95% CI | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Men |
Women |
H+ W+, % | H− W−, % | H+ W−, % | H− W+, % | ||||||
| Mean (SD) | % | Mean (SD) | % | ||||||||
| Continuous baseline characteristics | |||||||||||
| Age, years | 55.4 (5.4) | 53.0 (5.2) | 0.80 | ||||||||
| BMId | 27.5 (4.0) | 26.9 (5.5) | 0.18 | ||||||||
| Self-reported BMI at 25 years of age | 24.2 (3.4) | 21.9 (3.2) | 0.05 | ||||||||
| Alcohol intake, g/week | 64.3 (108.6) | 21.4 (47.8) | 0.39 | ||||||||
| Calorie intake, kcal/day | 1,767 (634) | 1,503 (519) | 0.13 | ||||||||
| Categorical baseline characteristics | |||||||||||
| White race | 86.6 | 86.7 | 83.5 | 12.8 | 0.0 | 0.1 | ∞e | ||||
| Less than a high school education | 19.5 | 14.5 | 8.2 | 74.2 | 11.3 | 6.3 | 8.55 | 7.03, 10.39 | |||
| Employed | 82.6 | 64.4 | 56.6 | 9.5 | 26.0 | 0.8 | 2.60 | 2.19, 3.07 | |||
| Obese (BMI ≥30d) | 22.6 | 24.7 | 8.1 | 60.8 | 14.6 | 16.6 | 2.03 | 1.72, 2.39 | |||
| Obese at 25 years of age (BMI ≥30d) | 5.92 | 2.69 | 0.3 | 91.7 | 5.6 | 2.3 | 2.36 | 1.30, 4.30 | |||
| Current smoker | 22.6 | 19.6 | 8.5 | 66.3 | 14.2 | 11.1 | 3.57 | 3.01, 4.23 | |||
| Does not meet physical activity guidelines | 55.5 | 67.4 | 40.3 | 17.5 | 15.1 | 27.1 | 1.72 | 1.50, 1.97 | |||
| Poor diet scoref (<2) | 33.2 | 19.8 | 9.1 | 56.0 | 24.2 | 10.7 | 1.95 | 1.66, 2.29 | |||
| Diabetes | 10.6 | 8.1 | 1.4 | 82.6 | 9.3 | 6.7 | 1.82 | 1.33, 2.49 | |||
| History of coronary heart disease | 8.4 | 1.6 | 0.3 | 90.3 | 8.1 | 1.3 | 2.79 | 1.47, 5.31 | |||
| Hypertension | 32.0 | 28.1 | 11.4 | 51.3 | 20.5 | 16.8 | 1.71 | 1.47, 1.97 | |||
| History of lung disease | 4.3 | 4.4 | 0.4 | 91.6 | 4.0 | 4.0 | 2.24 | 1.29, 3.89 | |||
| History of cancer | 4.3 | 6.4 | 0.5 | 89.8 | 3.8 | 5.9 | 2.18 | 1.35, 3.50 | |||
Abbreviations: BMI, body mass index; CI, confidence interval; H, husband; OR, odds ratio; SD, standard deviation; W, wife.
a H+W+ indicates couples in which both the husband and wife have the characteristic; H−W−, couples in which neither have it. H+W− and H−W+ indicate discordant pairs.
b The Pearson correlation coefficient within spouse pairs is shown for continuous variables.
c ORs within spouse pairs represent one's odds of having the characteristic if his or her spouse has the characteristic or the odds of having the characteristic if his or her spouse does not have the characteristic. OR = (H+W+ × H−W−)/(H+W− × H−W+).
d Weight (kg)/height (m2).
e Only 4 pairs were not concordant on race.
f Calculated based on American Heart Association guidelines.