Estimate

Std. Error

z value

p-value

(Intercept)

0.68653

0.63718

1.077

0.28128

EID Testing Point

2 - 9 months

0.63452

0.23899

2.655

0.00793**

9 - 12 months

0.17165

0.31957

0.537

0.59118

12 - 24 months

−0.06536

0.39827

−0.164

0.86965

Above 24 months

0.26338

0.28738

0.916

0.35941

PCR Type

Confirmatory PCR

−2.79575

1.18103

−2.367

0.01792*

2nd/3rd PCR

0.37511

0.60213

0.623

0.53330

Log(theta)

2.59197

1.19069

2.177

0.02949*

Zero-inflation model coefficients (binomial with logit link):

Estimate

Std. Error

z value

p-value

(Intercept)

3.8921

0.7788

4.998

5.8e−07***

EID Testing Point

2 - 9 months

−0.7150

0.4382

−1.632

0.10273

9 - 12 months

0.1998

0.5301

0.377

0.70630

12 - 24 months

0.2866

0.5680

0.505

0.61384

Above 24 months

−0.2927

0.4757

−0.615

0.53840

PCR Type

Confirmatory PCR

−19.2306

6342.1830

−0.003

0.99758

2nd/3rd PCR

−2.0276

0.7507

−2.701

0.00691**