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Table 1 Description of independent variables

From: Prevalence and determinants of unintended pregnancies amongst women attending antenatal clinics in Pakistan

Variables

Description

Socio demographic factors

Area of residence

Urban and rural

Socio economic status of the household

SES was measured as quintiles of a linear index derived from household assets and utilities score, the wealth quintiles were divided into five (poorest, poorer, middle, richer, richest)

Women related factors

Age

Categorized as <20 years, 20-24 years, 25-29 years and >30 years

Education

Years of education completed (illiterate/years of education)

Age of marriage

Categorized as = < 20 years and > 20 years, used as a proxy for age at first intercourse

Gestational age

Recorded in weeks and categorized as <28 weeks and 28 or more weeks

Parity

Defined as the number of previous deliveries and categorized as = < 2 times and > 2 times

Birth interval

Interval from one child's birth date until the next child's birth date and categorized as <12 months, 12-24 months and > 24 months

History of abortion or miscarriage

Any history of previous miscarriage and abortion and categorized as 1 = Yes and No = 2

Knowledge about family planning methods

Ever heard of any family planning method and categorized as 1 = Yes and No = 2

Use of family planning methods

Ever used any family planning method and categorized as 1 = Yes and No = 2