Table 3 Results of the general linear model (GLM) with Poisson error structure and log link function testing the influence of various factors on annual deworming frequency in dogs

Intercept

0.719

0.307

0.087–1.296

2.343

0.019

Owner gender (ref: male, n = 182)

-0.129

0.070

-0.266–0.006

-1.855

0.064

Owner age

-0.001

0.002

-0.006–0.004

-0.492

0.623

Attitude towards pets

Affectionate (n = 269)

Baseline

Devoted (n = 126)

-0.100

0.077

-0.253–0.049

-1.305

0.192

Dispassionate (n = 53)

-0.074

0.114

-0.304–0.145

-0.649

0.516

Sceptical (n = 52)

-0.256

0.122

-0.502– -0.023

-2.101

0.036

Veterinary visits

Once a year only (n = 227)

Baseline

More than once a year (n = 273)

0.328

0.069

0.193–0.465

4.736

<0.001

German ESCCAP risk group^a

A (n = 10) vs B (n = 24)

-0.176

0.303

-0.932–0.581

-0.581

0.930

A (n = 10) vs C (n = 154)

0.008

0.261

-0.646–0.662

0.031

1.000

A (n = 10) vs D (n = 312)

-0.011

0.259

-0.657–0.636

-0.041

1.000

B (n = 24) vs C (n = 154)

0.184

0.178

-0.260–0.628

1.036

0.701

B (n = 24) vs D (n = 312)

0.165

0.172

-0.266–0.596

0.958

0.749

C (n = 154) vs D (n = 312)

-0.019

0.070

-0.194–0.156

-0.268

0.992

Neighbourhood^a

Rural (n = 186) vs city (n = 58)

0.003

0.106

-0.268–0.273

0.025

1.000

Suburban (n = 79) vs city (n = 58)

-0.051

0.124

-0.367–0.266

-0.411

0.976

Town (n = 177) vs city (n = 58)

-0.012

0.107

-0.286–0.261

-0.117

0.999

Suburban (n = 79) vs rural (n = 186)

-0.054

0.099

-0.306–0.199

-0.543

0.947

Town (n = 177) vs rural (n = 186)

-0.015

0.075

-0.208–0.177

-0.201

0.997

Town (n = 177) vs suburban (n = 79)

0.038

0.100

-0.218–0.295

0.383

0.980

Source of information regarding deworming

Veterinarian/vet nurse (ref: yes, n = 7)

0.412

0.213

-0.029–0.811

1.928

0.054

Non-veterinarian (other pet owners, pet shop staff, etc.) (ref: yes, n = 331)

-0.093

0.073

-0.236–0.050

-1.278

0.201

Books and magazines (ref: yes, n = 93)

0.079

0.089

-0.098–0.252

0.889

0.374