SISS 2018

Mongolia, 2018

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Reference ID

DDI-MNG-NSO-EN-SISS-2018-v1.0

Producer(s)

National Statistical Office

Collections

SOCIAL INDICATOR SAMPLE SURVEY

Metadata

DDI/XML JSON

Created on

Oct 16, 2025

Last modified

Nov 04, 2025

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36114

Start of last menstrual period - unit (UN14U)

Data file: Women

Overview

Valid: 10791

Invalid: 946

Type: Discrete

Decimal: 0

Width: 1

Range: 1 - 9

Format: Numeric

Questions and instructions

Literal question

When did your last menstrual period start?

Categories

Value	Category	Cases
1	DAYS AGO	3398	31.5%
2	WEEKS AGO	3586	33.2%
3	MONTHS AGO	2630	24.4%
4	YEARS AGO	909	8.4%
9	SPECIAL	268	2.5%
Sysmiss		946

Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.

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