Table 3.
Summary statistics for CVD hospitalization rates (daily cases per 10,000 older adults) before (Periods T1 and T2), during (Period T3), and after Hurricane Katrina (Periods T4, T5, and T6) in three parishes for total, black and white older adults. Slopes and intercepts were generated using segmented regression models.
| Periods | T1 | T2 | T3 | T4 | T5 | T6 | |
|---|---|---|---|---|---|---|---|
| Number of days | 219 | 13 | 9 | 28 | 28 | 413 | |
| Date Range | 7 January 2005–13 August | 14–26 August | 27 August–4 September | 5 September–2 October | 3–30 October | 31 October–17 December 2006 | |
| Total population | |||||||
| Orleans Parish | Min, Max | 1.44, 12.76 | 1.85, 6.58 | 2.06, 45.36 | 6.5, 28.15 | 3.4, 15.02 | 1.25, 14.39 |
| Mean ± SD | 7.25 ± 2.44 | 3.91 ± 1.45 a | 18.46 ± 17.3 a | 13.76 ± 6.51 a | 9.54 ± 2.78 | 4.69 ± 2.08 a | |
| Intercept b | 8.31 | 5.07 | 4.99 | 27.28 | 8.66 | 6.51 | |
| Slope ± SE | −0.01 ± 0.003 | −0.24 ± 0.06 c | 3.12 ± 0.19 c | −3.56 ± 0.17 c | 0.61 ± 0.06 c | 0.07+0.03 c | |
| Jefferson Parish | Min, Max | 1.10, 10.27 | 2.02, 6.97 | 2.38, 12.70 | 3.43, 12.02 | 2.57, 8.07 | 0.86, 8.58 |
| Mean ± SD | 5.90 ± 1.90 | 5.01 ± 1.52 | 8.18 ± 3.70 a | 7.26 ± 2.15 a | 5.36 ± 1.53 | 4.65 ± 1.57 a | |
| Intercept | 6.82 | 5.02 | 5.49 | 9.60 | 5.48 | 5.04 | |
| Slope ± SE | −0.01 ± 0.002 | 0.003 ± 0.05 | 0.54 ± 0.14 c | −0.68 ± 0.11 c | 0.14 ± 0.04 c | 0.01 ± 0.02 | |
| East BR Parish | Min, Max | 2.97, 15.83 | 3.96, 13.61 | 3.05, 11.56 | 2.84, 10.04 | 1.75, 12.44 | 1.31, 13.09 |
| Mean ± SD | 8.69 ± 2.74 | 9.11 ± 2.69 | 6.52 ± 2.58 | 6.55 ± 1.70 a | 6.96 ± 2.42 a | 7.39 ± 2.37 a | |
| Intercept | 9.40 | 6.43 | 5.19 | 4.58 | 6.76 | 7.20 | |
| Slope ± SE | −0.01 ± 0.003 | 0.09 ± 0.08 | −0.47 ± 0.21 c | 0.44 ± 0.17 c | −0.03 ± 0.06 | −0.02 ± 0.02 | |
| Black population | |||||||
| Orleans Parish | Min, Max | 1.50, 13.51 | 1.13, 8.26 | 1.50, 64.22 | 7.94, 32.44 | 1.99, 15.23 | 0.66, 17.87 |
| Mean ± SD | 7.37 ± 2.70 | 3.91 ± 2.12 a | 26.29 ± 23.7 a | 17.54 ± 8.00 a | 9.10 ± 3.51 | 5.30 ± 2.43 a | |
| Intercept | 8.50 | 4.94 | 5.16 | 33.60 | 8.37 | 6.40 | |
| Slope ± SE | −0.01 ± 0.004 | −0.28 ± 0.08 c | 3.96 ± 0.25 c | −4.60 ± 0.22 c | 0.86 ± 0.08 c | 0.07 ± 0.03 c | |
| Jefferson Parish | Min, Max | 1.61, 22.56 | 1.61, 16.11 | 1.61, 20.66 | 2.95, 16.23 | 1.48, 10.33 | 1.48, 17.71 |
| Mean ± SD | 6.76 ± 3.94 | 6.58 ± 4.32 | 11.79 ± 6.81 a | 7.05 ± 3.78 | 4.86 ± 2.31 | 5.81 ± 2.95 a | |
| Intercept | 6.96 | 6.43 | 6.87 | 12.46 | 3.17 | 5.92 | |
| Slope ± SE | −0.002 ± 0.004 | −0.03 ± 0.08 | 0.77 ± 0.25 c | −1.09 ± 0.22 c | 0.45 ± 0.08 c | −0.10 ± 0.03 c | |
| East BR Parish | Min, Max | 1.76, 20.29 | 5.29, 18.52 | 2.23, 13.40 | 4.47, 19.35 | 0.74, 20.10 | 1.49, 20.84 |
| Mean ± SD | 10.48 ± 4.00 | 11.81 ± 4.65 | 7.30 ± 3.72 | 9.22 ± 3.60 | 8.45 ± 4.28 | 8.90 ± 3.55 a | |
| Intercept | 11.67 | 10.14 | 11.36 | 7.04 | 10.24 | 9.13 | |
| Slope ± SE | −0.01 ± 0.004 | 0.16 ± 0.09 | −0.70 ± 0.27 c | 0.68 ± 0.25 c | −0.16 ± 0.09 | 0.04 ± 0.04 | |
| White population | |||||||
| Orleans Parish | Min, Max | 0.98, 16.59 | 1.95, 5.86 | 2.44, 30.39 | 4.96, 23.30 | 3.10, 15.50 | 0.62, 13.64 |
| Mean ± SD | 7.09 ± 2.83 | 4.20 ± 1.05 a | 16.56 ± 11.7 a | 13.80 ± 6.15 a | 8.81 ± 2.89 | 4.76 ± 2.43 a | |
| Intercept | 8.06 | 5.29 | 5.17 | 21.75 | 8.96 | 6.66 | |
| Slope ± SE | −0.01 ± 0.003 | −0.18 ± 0.06 c | 2.32 ± 0.20 c | −2.60 ± 0.18 c | 0.39 ± 0.06 c | 0.08 ± 0.03 c | |
| Jefferson Parish | Min, Max | 1.31, 9.82 | 1.96, 6.76 | 2.62, 12.56 | 3.24, 11.95 | 2.23, 8.51 | 0.81, 8.71 |
| Mean ± SD | 5.90 ± 1.90 | 5.00 ± 1.49 | 7.76 ± 3.34 a | 7.43 ± 2.21 a | 5.47 ± 1.72 | 4.55 ± 1.58 a | |
| Intercept | 6.84 | 4.99 | 5.40 | 9.34 | 5.86 | 4.99 | |
| Slope ± SE | −0.01 ± 0.002 | −0.0001 ± 0.04 | 0.52 ± 0.12 c | −0.64 ± 0.11 c | 0.10 ± 0.04 c | 0.03 ± 0.02 | |
| East BR Parish | Min, Max | 2.48, 15.97 | 3.19, 13.13 | 2.55, 10.51 | 1.91, 8.60 | 1.27, 10.19 | 0.64, 13.38 |
| Mean ± SD | 8.09 ± 2.77 | 8.16 ± 2.73 | 6.17 ± 2.63 | 5.53 ± 1.65 a | 6.34 ± 2.26 a | 6.83 ± 2.40 a | |
| Intercept | 8.57 | 7.79 | 7.74 | 5.25 | 5.90 | 7.10 | |
| Slope ± SE | −0.004 ± 0.003 | 0.03 ± 0.06 | −0.33 ± 0.18 | 0.34 ± 0.16 c | 0.02 ± 0.06 | −0.05 ± 0.02 | |
a indicate p-value < 0.05 from t-tests comparing the average rate of each period to Period T1. b reflect the intercept or predicted value at beginning of the interval from piecewise regression models. c indicate p-value < 0.05 from t-tests for slope significance.