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. 2019 Sep 24;16(19):3567. doi: 10.3390/ijerph16193567

Table 1.

Variables used in this study and their re-categorization.

Category Factors Data Collected Re-Categorization
Outcome variable Depression symptom CESD-10 (10 items) Categorical

  1. With depression

    (score 11–30)

  2. Without depression

    (score 0–10)
Explanatory variable Owners’ attitudes toward their dogs PAS-M (18 items) Continuous
  (score 1–126)
Categorical

  1. High (higher than 89)

  2. Low (less or equal to 89)
Covariates Age Continuous (19–39) Categorical

  1. 19–29

  2. 30–39
Sex Categorical

  1. Men

  2. Women

 -
Education Categorical

  1. ≤Elementary school

  2. Middle school

  3. High school

  4. ≥University degree

 Categorical

  1. ≤High school

  2. ≥University degree
Income level Continuous
(monthly income)		 Categorical

  1. Highest tertile

  2. Middle tertile

  3. Lowest tertile
Marital status Categorical

  1. Married

  2. Separated

  3. Bereaved

  4. Divorced

  5. Single

 Categorical

  1. Married

  2. Currently single

    (separated/ bereaved/ divorced/ single)
Employment Categorical

  1. Employed

  2. Unemployed

 -
Family number Continuous Categorical

  1. One or two

  2. Three or more

Note: Nine variables were investigated in this study and the variables were re-categorized for the statistical analysis.