Table 2 Description of variables in the New Zealand campylobacteriosis notification and short term international travelers’ datasets (2000–2010)
Variables | Details |
|---|---|
Deprivation index | Categorical, 1–10 scale (1 = least deprived, 10 = most deprived) |
Urban | Numeric, Proportion of DHB population under urban influence |
DHB | Categorical, Residence District Health Board |
Travel rate | Numeric, Residence DHB’s rate of short term international travel |
Report date | Year of campylobacteriosis notification, 2000-2010 |
Age | Four categories; <5, 5–19, 20–65 and 65+ Years |
Sex | Two categories; Male and Female |
Season | Four categories; Spring (Sep-Nov), Summer (Dec-Feb), Autumn (Mar-May) & Winter (Jun-Aug) |
Overseas travel | Three categories; Yes, No, Unknown (62 % of the cases did not have travel information.) |
Intervention | A binary indicator variable to identify before and after the 2006 poultry intervention period. |