Table 3.
Model results for floor PbD.
| Linear model for log PbD (R2 = 35%)
|
Logistic model PbD ≥ 10 μg/ft2 (R2 = 7%a)
|
|||||
|---|---|---|---|---|---|---|
| Variables | Overall p-value | Estimate (SE) | p-Value | Overall p-value | Estimate (SE) | p-Value |
| Intercept | 0.235 | −0.239 (0.199) | 0.235 | < 0.001 | −6.179 (0.834) | < 0.001 |
|
Floor surface/condition | ||||||
| Smooth and cleanable | < 0.001 | 0.000 | < 0.001 | 0.000 | ||
| Not smooth and cleanable | 0.354 (0.254) | 0.170 | 0.449 (0.740) | 0.547 | ||
| Carpeted, low pile | −0.634 (0.094) | < 0.001 | −2.147 (0.401) | < 0.001 | ||
| Carpeted, high pile | −0.868 (0.110) | < 0.001 | −2.868 (1.229) | 0.024 | ||
|
Log windowsill PbD loading | ||||||
| Intercept for missing | < 0.001 | 0.409 (0.090) | < 0.001 | < 0.001 | 0.000 | |
| Slope | 0.172 (0.027) | < 0.001 | 0.732 (0.106) | < 0.001 | ||
|
Race/ethnicity | ||||||
| Non-Hispanic white | < 0.001 | 0.000 | — | 0.009 | 0.000 | — |
| Non-Hispanic black | 0.373 (0.086) | < 0.001 | 0.900 (0.516) | 0.088 | ||
| Hispanic | −0.015 (0.087) | 0.864 | — | — | — | |
| Otherb | −0.194 (0.129) | 0.140 | — | −0.492 (0.581) | 0.402 | |
|
PIR | ||||||
| Intercept for missing | 0.028 | 0.036 (0.120) | 0.768 | — | — | — |
| Slope | −0.047 (0.020) | 0.021 | — | — | — | |
|
Year of construction | ||||||
| Intercept for missing | < 0.001 | −0.136 (0.141) | 0.338 | < 0.040 | −0.032 (0.665) | 0.962 |
| 1990–present | −0.795 (0.128) | < 0.001 | — | — | ||
| 1978–1989 | −0.714 (0.149) | < 0.001 | — | — | ||
| 1960–1977 | −0.410 (0.137) | 0.004 | — | — | ||
| 1950–1959 | −0.366 (0.177) | 0.044 | 0.872 (0.723) | 0.234 | ||
| 1940–1949 | −0.393 (0.242) | 0.118 | 1.284 (1.015) | 0.213 | ||
| Before 1940 | 0.000 | — | 0.000 | — | ||
| 1960–present | — | — | −1.519 (0.775) | 0.056 | ||
|
Anyone smoke inside the home | ||||||
| Intercept for missing | 0.006 | −0.352 (0.344) | 0.312 | — | — | — |
| Yes | 0.253 (0.087) | 0.006 | — | — | ||
| No | 0.000 | — | — | |||
|
Window, cabinet, or wall renovation in a pre-1950 home | ||||||
| Intercept for missing | 0.056 | −0.113 (0.116) | 0.334 | — | — | — |
| Yes | 0.355 (0.181) | 0.056 | — | — | ||
| No | 0.000 | — | — | |||
|
Year of survey | ||||||
| 1999–2000 | < 0.001 | 0.429 (0.093) | < 0.001 | — | — | — |
| 2001–2002 | 0.067 (0.091) | 0.470 | — | — | ||
| 2003–2004 | 0.000 | — | — | |||
|
Home-apartment type | ||||||
| One-family house, detached | — | — | 0.042 | 1.032 (0.550) | 0.067 | |
| One-family house, attached | — | — | 1.397 (0.739) | 0.066 | ||
| Apartment (1–9 units) | — | — | 1.964 (0.604) | 0.002 | ||
| Apartment (≥ 10 units) | — | — | 0.000 | |||
a
Estimated using Cox–Snell methodology.
b
“Other” includes Hispanics for the logistic model.