Table 2 Analysis of risk factors using PCR as dependent variable

Location

F4*

1/11 (9)

1.0

Ref

F13^#

2/11 (18.2)

0.5

0.450

0.035–5.843

F14^#

2/12 (20)

0.5

0.5

0.039–6.43 s

F15^#

1/21 (4.7)

0.5

2.0

0.113–35.41

No of birds

< 50

5/67

1.0

Ref

> 500

1/141

0.01^a

11.47

1.313–100.3

Type of the birds

Village chicken

1/57

1.0

Ref

Layer chicken

0/100

–

–

NA

Captive pet birds

5/85

0.22

.28

0.03–2.512

Breed of birds

Local chicken

1/157

Ref

Exotic captive birds

5/85

0.02^a

0.103

0.012–0.893

Feed

Commercial

2/168

Ref

Local

4/74

0.07

0.21

0.038–1.178

Source of water

Open surface tank

4/80

Ref

Drinkers

2/162

0.09

4.21

0.75–23.495

Hygiene

Good

3/131

Ref

Fair

3/71

0.35

0.531

0.104–2.704

Poor

0/40

Access of wild birds

Yes

5/122

Ref

No

1/120

0.1

5.08

0.585–44.191