Table 3. Coefficients from logistic regression models of depression since Hurricane Katrina, Mississippi Community Study, 2007a.
Coefficients and 95% confidence intervals from logistic regression models of depression since Hurricane Katrina. Coefficients in Model 1 are not adjusted for other variables. Model 2 adjusted for displacement, low county social cohesion, Black race, sex, age, educational attainment, number of lifetime PTSD symptoms, county percent population aged 25+ with at least a bachelor’s degree, and county percent occupied housing units with major or severe damage from Hurricane Katrina. Model 3 = Model 2 + displacement x low county social cohesion interaction. Model 4 = Model 3 + individual perceived social cohesion score. Model 5 = Model 3 + social support tertile. Model 6 = Model 3 + individual perceived social cohesion score and social support tertile.
| Unadjusted | Adjusted |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 | |||||||
| −2 Log Likelihoodb | 588.91 | 584.63 | 584.41 | 578.47 | 578.30 | |||||||
| Covariate | b | 95% CI | b | 95% CI | b | 95% CI | b | 95% CI | b | 95% CI | b | 95% CI |
| Displaced after Katrina | 0.97 | (0.51, 1.43)*** | 0.72 | (0.15, 1.30)* | 0.04 | (−0.80, 0.88) | 0.03 | (−0.79, 0.85) | 0.00 | (−0.85, 0.85) | 0.01 | (−0.84, 0.86) |
| Low social cohesion | 0.94 | (0.38, 1.51)** | 0.58 | (0.04, 1.12)* | 0.28 | (−0.35, 0.90) | 0.25 | (−0.43, 0.93) | 0.23 | (−0.39, 0.86) | 0.26 | (−0.42, 0.93) |
| Low social cohesion x displaced | 1.02 | (0.05, 2.00)* | 1.03 | (0.06, 1.99)* | 1.11 | (0.15, 2.08)* | 1.11 | (0.14, 2.09)* | ||||
| Black race (vs. White) | 0.98 | (0.01, 1.95)* | 0.62 | (−0.26, 1.50) | 0.71 | (−0.18, 1.61) | 0.69 | (−0.22, 1.61) | 0.67 | (−0.27, 1.61) | 0.69 | (−0.24, 1.62) |
| Female gender | 0.12 | (−0.24, 0.49) | 0.08 | (−0.32, 0.48) | 0.11 | (−0.30, 0.52) | 0.11 | (−0.31, 0.54) | 0.10 | (−0.33, 0.53) | 0.10 | (−0.34, 0.54) |
| Age (per 5 years) | −0.09 | (−0.17, 0.00)* | −0.06 | (−0.15, 0.02) | −0.06 | (−0.15, 0.02) | −0.06 | (−0.15, 0.02) | −0.06 | (−0.15, 0.02) | −0.07 | (−0.15, 0.02) |
| Educational attainment (vs. <high school) | ||||||||||||
| High school/GED | −1.05 | (−1.85, −0.24)* | −0.68 | (−1.53, 0.17) | −0.62 | (−1.50, 0.27) | −0.59 | (−1.38, 0.20) | −0.60 | (−1.51, 0.31) | −0.62 | (−1.43, 0.18) |
| Some college | −1.23 | (−2.14, −0.32)** | −0.99 | (−1.80, −0.18)* | −0.95 | (−1.80, −0.11)* | −0.92 | (−1.69, −0.15)* | −0.92 | (−1.76, −0.07)* | −0.95 | (−1.72, −0.17)* |
| College graduate | −1.89 | (−2.77, −1.02)*** | −1.54 | (−2.34, −0.75)*** | −1.40 | (−2.23, −0.57)** | −1.35 | (−2.09, −0.62)*** | −1.31 | (−2.17, −0.44)** | −1.34 | (−2.10, −0.58)*** |
| Number of lifetime PTSD symptoms | 0.55 | (0.34, 0.75)*** | 0.49 | (0.24, 0.73)*** | 0.49 | (0.25, 0.73)*** | 0.49 | (0.26, 0.72)*** | 0.45 | (0.21, 0.70)*** | 0.46 | (0.22, 0.70)*** |
| County % population aged 25+ with a BAc | −0.11 | (−0.26, 0.04) | −0.05 | (−0.19, 0.10) | −0.05 | (−0.19, 0.08) | −0.05 | (−0.19, 0.09) | −0.05 | (−0.19, 0.09) | −0.05 | (−0.19, 0.09) |
| County % occupied housing units with major/severe damage from Katrina (per 5%) |
−0.01 | (−0.11, 0.09) | −0.01 | (−0.11, 0.08) | −0.01 | (−0.09, 0.08) | −0.01 | (−0.09, 0.08) | −0.01 | (−0.10, 0.08) | −0.01 | (−0.10, 0.08) |
| Individual social cohesion scored | −0.67 | (−1.09, −0.22)** | −0.06 | (−0.42, 0.31) | 0.05 | (−0.34, 0.44) | ||||||
| Social support (vs. T3: High) | ||||||||||||
| T2: Medium | 0.89 | (0.12, 1.66)* | 0.27 | (−0.57, 1.11) | 0.28 | (−0.55, 1.11) | ||||||
| T1: Low | 1.28 | (0.41, 2.14)** | 0.66 | (−0.30, 1.63) | 0.71 | (−0.27, 1.68) | ||||||
Sample limited to respondents who reported being of non-Hispanic black or white race and who did not change their county of residence after Hurricane Katrina. N=708; weighted N=1533.
Average value over 25 imputations; −2 log likelihood for intercept-only model = 743.42; −2 log likelihood for model including only social cohesion, displacement, and their interaction = 698.30.
Data from 2000 U.S. Census.
Range 0–4. Higher represents higher social cohesion.
p < 0.10;
p < 0.01;
p < 0.001