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Table 1 Operational definitions of variables and their measurements

From: Correlates of unintended pregnancy among currently pregnant married women in Nepal

Variables Description Measurement scale
Unintended pregnancy Type (intendedness) of current pregnancy Dichotomous
   0 = Intended
   1 = Unintended
Age of women Respondent's current age at time of survey Ordinal for bivariate analysis
   0 = 15–24 years
   1 = 25–34 years
   2 = 35–49 years
   Interval scale for multivariate
Ideal number of children Women's concept or preferences about the number of children Ordinal for bivariate analysis
   1 = One
   2 = Two
   3 = Three and more
   Interval scale for multivariate
Parity Number of children given by the respondents Ordinal for bivariate analysis
   0 = None
   1 = One
   2 = Two
   3 = Three and more
   Interval scale for multivariate
Age at first marriage Respondents' completed age at the time of marriage Ordinal for bivariate analysis
   0 = Less than 16 years
   1 = 16 years and more
   Interval scale for multivariate
Women's education Literacy status of women Ordinal
   0 = No education/illiterate
   1 = Literate
Women's occupation Types of women's work Nominal
   0 = Not working/agriculture
   1 = Non-agriculture
Place of residence Types of place of residence of the respondent Dichotomous
   0 = Urban
   1 = Rural
Radio exposure Listen to radio every day Dichotomous
   0 = No
   1 = Yes
TV exposure Watch television at least once a week Dichotomous
   0 = No
   1 = Yes
Travel time to the nearest family planning sources Travel time needed to reach the nearest family planning sources from her residence Ordinal
   0 = Less than 30 minutes
   1 = 30–60 minutes
   2 = More than 1 hour
   3 = No response/don't know
Family planning field worker's visit Women who are visited by family planning program's worker in the last 12 months Dichotomous
   0 = Not visited
   1 = Visited
Religion Women's religion Dichotomous
   0 = Non-Hindu
   1 = Hindu
Woman's autonomy Autonomy on own health care and how to spend own earned money Nominal
   0 = No autonomy
   1 = Some autonomy
Knowledge about family planning methods Knowledge score of different family Planning method Ordinal
   0 = Lower knowledge
   1 = Higher knowledge
Ever use of family planning method Respondents who had ever use of any contraceptive or not in the past Dichotomous
   0 = Never used
   1 = Ever used