Table 4.
Mean 10 Year Weight Gain (kgs) and Incident Obesity* by Quintile of Neighborhood SES Within Strata of Education, BWHS 1995–2005
| Neighborhood SES | Mean weight change (kg)(95% CI)* | IRR (95% CI)*† |
|---|---|---|
| ≤12 years of education | ||
| Quintile 1 (lowest) | 5.48 (5.03,5.94) | 1.06 (0.56,2.01) |
| Quintile 2 | 5.58 (5.01,6.15) | 1.27 (0.66,2.44) |
| Quintile 3 | 5.63 (5.00,6.27) | 0.74 (0.36,1.50) |
| Quintile 4 | 5.68 (5.03,6.33) | 0.81 (0.38,1.70) |
| Quintile 5 (highest) | 5.55 (4.73,6.37) | 1.0 |
| Ptrend=0.70 | Ptrend=0.26 | |
| 13–15 years of education | ||
| Quintile 1 (lowest) | 7.48 (7.08,7.89) | 1.23 (0.91,1.66) |
| Quintile 2 | 7.43 (7.03,7.83) | 1.24 (0.91,1.68) |
| Quintile 3 | 7.23 (6.85,7.61) | 1.15 (0.84,1.56) |
| Quintile 4 | 7.31 (6.91,7.71) | 1.01 (0.73,1.39) |
| Quintile 5 (highest) | 7.02 (6.59,7.45) | 1.0 |
| Ptrend=0.14 | Ptrend=0.06 | |
| ≥16 years of education | ||
| Quintile 1 (lowest) | 6.89 (6.43,7.35) | 1.38 (1.07,1.79) |
| Quintile 2 | 6.95 (6.57,7.33) | 1.25 (0.98,1.59) |
| Quintile 3 | 6.81 (6.50,7.13) | 1.29 (1.03,1.62) |
| Quintile 4 | 6.55 (6.28,6.85) | 1.32 (1.07,1.64) |
| Quintile 5 (highest) | 6.09 (5.84,6.34) | 1.0 |
| Ptrend=<0.001 | Ptrend=0.03 | |
BWHS, Black Women’s Health Study; CI, confidence interval; IRR, incidence rate ratio; SES, socioeconomic status
Adjusted for age (continuous), calendar time, family income (≤$25,000, $25,001–$50,000, $50,001–$100,000, >$100,000), number of persons in the household (1, 2, 3, 4, ≥5), marital status (married, divorced/widowed/separated, single), number of cigarettes smoked per day (nonsmoker, <15, 15–24, ≥25), number of drinks per day (<1, 1–6, 7–13, ≥14), vigorous exercise (hours/week) (0, <1, 1–2.9, 3–4.9, 5–6.9, ≥7), walk for exercise (hours/week) (0, <1, 1–2.9, 3–4.9, 5–6.9, ≥7), energy intake (kcal/day) (quintiles), and percentage of calories from fat (quintiles)
Among women with BMI<25 at baseline