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Table 12 Convergence rates of regression models fitted on data generated with ZINB regression model, n = 200

From: A comparison of statistical methods for modeling count data with an application to hospital length of stay

Dispersion

Proportion of Zeros

Poisson

NB

ZIP

ZINB

0.01

0.1

100.0%

99.8%

100.0%

98.8%

0.3

100.0%

100.0%

100.0%

98.8%

0.5

100.0%

100.0%

100.0%

98.6%

0.7

100.0%

100.0%

100.0%

96.4%

1

0.1

100.0%

100.0%

100.0%

100.0%

0.3

100.0%

100.0%

100.0%

100.0%

0.5

100.0%

100.0%

100.0%

100.0%

0.7

100.0%

100.0%

100.0%

99.9%

5

0.1

100.0%

100.0%

100.0%

100.0%

0.3

100.0%

100.0%

100.0%

100.0%

0.5

100.0%

100.0%

100.0%

100.0%

0.7

100.0%

100.0%

100.0%

100.0%

10

0.1

100.0%

100.0%

100.0%

100.0%

0.3

100.0%

100.0%

100.0%

100.0%

0.5

100.0%

100.0%

100.0%

100.0%

0.7

100.0%

100.0%

100.0%

100.0%