Table 2.
Hazards ratios (with 95% confidence intervals) of incident mobility impairment among those without impairment at baseline, by socioeconomic indicators
| Whites | Blacks | |||||||
| Women (n = 1,702) | Men (n = 1,452) | Women (n = 296) | Men (n = 234) | |||||
| Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | Model 1 | Model 2 | |
| Neighborhood Score* | ||||||||
| 1st quartile | 1.23 (1.03,1.44) |
1.12 (0.93, 1.35) |
1.30 (1.05, 1.62) |
1.15 (0.89, 1.48) |
1.30 (0.84, 2.02) |
1.16 (0.75, 1.80) |
1.14 (0.65, 1.97) |
1.01 (0.55, 1.86) |
| 2nd quartile | 1.19 (1.00, 1.42) |
1.12 (0.94, 1.34) |
1.28 (1.04, 1.57) |
1.19 (0.95, 1.50) |
1.09 (0.68, 1.76) |
0.97 (0.60, 1.57) |
1.05 (0.59, 1.90) |
1.01 (0.55, 1.83) |
| 3rd quartile | 1.04 (0.88, 1.23) |
1.01 (0.85, 1.21) |
1.21 (0.98, 1.49) |
1.18 (0.95, 1.47) |
1.38 (0.88, 2.14) |
1.34 (0.87, 2.07) |
0.94 (0.54, 1.66) |
0.96 (0.54, 1.71) |
| 4th quartile | REF | REF | REF | REF | REF | REF | REF | REF |
| P Trend | 0.009 | 0.21 | 0.01 | 0.38 | 0.41 | 0.38 | 0.63 | 0.80 |
| Income | ||||||||
| < $12,000 | 1.29 (1.01, 1.64) |
1.12 (0.87, 1.45) |
2.06 (1.39, 3.05) |
1.92 (1.27, 2.91) |
3.55 (1.68, 7.47) |
3.01 (1.28, 7.10) |
1.15 (0.53, 2.49) |
1.10 (0.42, 2.85) |
| $12,000–$24,999 | 1.20 (1.01, 1.43) |
1.07 (0.88, 1.29) |
1.32 (1.06, 1.64) |
1.23 (0.95, 1.60) |
2.85 (1.34, 6.10) |
2.61 (1.14, 5.89) |
1.28 (0.70, 2.35) |
1.22 (0.56, 2.64) |
| $25,000–$34,999 | 1.08 (0.90, 1.29) |
1.01 (0.84, 1.21) |
1.11 (0.93, 1.33) |
1.06 (0.87, 1.30) |
2.31 (1.02, 5.25) |
2.25 (0.96, 5.28) |
0.85 (0.45, 1.61) |
0.85 (0.42, 1.74) |
| ≥ $35,000 | REF | REF | REF | REF | REF | REF | REF | REF |
| P Trend | 0.01 | 0.38 | 0.0004 | 0.01 | 0.0002 | 0.004 | 0.29 | 0.40 |
| Education | ||||||||
| Incomplete High School | 1.43 (1.17, 1.74) |
1.29 (1.04, 1.60) |
1.25 (1.02, 1.55) |
1.07 (0.85, 1.35) |
1.91 (1.18, 3.08) |
1.28 (0.74, 2.21) |
1.29 (0.75, 2.21) |
1.12 (0.57, 2.19) |
| Complete High School or GED | 1.28 (1.08, 1.52) |
1.22 (1.02, 1.46) |
1.06 (0.87, 1.27) |
0.94 (0.76, 1.15) |
1.35 (0.84, 2.16) |
1.01 (0.61, 1.65) |
0.98 (0.51, 1.89) |
0.94 (0.42, 2.09) |
| 1–3 yrs College or Vocational | 1.31 (1.08, 1.60) |
1.29 (1.05, 1.57) |
1.07 (0.84, 1.36) |
1.00 (0.78, 1.29) |
1.10 (0.59, 2.04) |
0.87 (0.48, 1.59) |
1.15 (0.57, 2.33) |
1.06 (0.46, 2.42) |
| 4 Years College or More | REF | REF | REF | REF | REF | REF | REF | REF |
| P Trend | 0.001 | 0.03 | 0.06 | 0.64 | 0.006 | 0.85 | 0.43 | 0.98 |
| Summary SEP score (per unit change) | 0.95 (0.93, 0.98) |
n/a | 0.95 (0.92, 0.98) |
n/a | 0.89 (0.82, 0.96) |
n/a | 0.96 (0.88, 1.05) |
n/a |
| P Trend | 0.0004 | n/a | 0.0009 | n/a | 0.002 | n/a | 0.37 | n/a |
*race-specific quartiles
**Model 1 adjusted for age; Model 2 adjusted for age plus all other SEP indicators