[India] National Family Health Survey (NFHS-4) 2015-16 - IPUMS Subset

India, 2015 - 2016

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Reference ID

IND_2015_DHS_v01_M_v02_A_IPUMS

Producer(s)

International Institute for Population Sciences (IIPS) and ICF., Minnesota Population Center

Collection(s)

Integrated Public Use Microdata Series (IPUMS)

Metadata

Documentation in PDF DDI/XML JSON

Created on

Aug 15, 2018

Last modified

May 14, 2020

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268346

Date of respondent's first birth, in century months (W_DOB1STKIDCMC)

Data file: IND2015-W.dat

Overview

Type: Discrete

Decimal: 0

Start: 348

End: 351

Width: 4

Range: -

Format: Numeric

Questions and instructions

Value	Category
9998	Missing
9999	NIU (not in universe)

Description

Definition

DOB1STKIDCMC (V211) reports the century month code (CMC) for the date of the woman's first birth.

The Guide to DHS Statistics (2003) explains the use and calculation of CMC values as follows:

Century month codes (CMC) are particularly important to check consistency of dates, to calculate intervals between events, and to impute dates when the information for an event is missing or partially complete.

Century month codes (CMC) are calculated by multiplying by 12 the difference between the year of an event and 1900. That year was chosen as the reference period because all of the DHS relevant events occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result.

CMC = (Year - 1900) * 12 + Month

For example, the CMC for June 2002 will be:

CMC = (2002 - 1900) * 12 + 6 = 1230

In other words, 1,230 months have elapsed since January 1900 to June 2002. Based on CMC it is possible to calculate the month and year using the following formulas:

Year = int( ( CMC minus 1 )/12 ) + 1900
[int(x) is the integer part of x]
Month = CMC - ( ( Year - 1900 ) * 12 )

concept

Concept

var_concept.title	Vocabulary
Fertility Variables -- TOPICS	IPUMS

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