|
Estimated annual incidence and Weibull parameters for major depression |
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| Year |
N |
Approximate incidence proportion* |
Model-Based Estimates |
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|
|
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| Approximate Incidence Proportion* |
Adjusted Annual Incidence** |
Weibull Scale Parameter |
Weibull Shape Parameter |
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|
|
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| 1994–96 |
9370 |
3.5% |
3.5% |
2.8% |
52.9 |
0.66 |
| 1996–98 |
9689 |
3.6% |
3.6% |
2.8% |
52.9 |
0.66 |
| 1998–00 |
9427 |
3.8% |
3.8% |
3.1% |
47.4 |
0.71 |
| 2000–02 |
9244 |
3.8% |
3.8% |
3.1% |
47.9 |
0.86 |
|
* proportion without an episode in the year preceding the start of the interval (1994, 1996, 1998 or 2000) who have an episode in the year preceding the following interview. ** using the exponential formula (2 year incidence = 1 - e-one year rate*2) these annual rates correspond to predicted 2-year incidence ranging from 5.4% to 6.0%. | ||||||
Patten Clinical Practice and Epidemiology in Mental Health 2006 2:13 doi:10.1186/1745-0179-2-13 |
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