Associations between neighbourhood deprivation and depressive symptoms* among 318 adult twins (159 pairs) in the Washington State Twin Registry with discordant depression scores, 2009–2013
| exp(β) | 95% CI | |
| Singh Index | ||
| Between pair | 0.99 | 0.95 to 1.03 |
| Within pair | 1.20 | 1.14 to 1.26 |
| Income | 0.94 | 0.92 to 0.96 |
| Education | 0.96 | 0.90 to 1.01 |
| Marital status | ||
| Single | 1.00 | |
| Living as married | 0.79 | 0.71 to 0.89 |
| Previously married | 1.04 | 0.91 to 1.18 |
| Population density† | 0.90 | 0.80 to 1.01 |
*Measured by the two-item Patient Health Questionnaire.
†Scaled to 10 000 people per square mile.