[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

Page views

1251520

Respondent's date of birth, in century months (W_DOBCMC)

Data file: IND2015-W.dat

Overview

Type: Continuous

Decimal: 0

Start: 257

End: 260

Width: 4

Range: -

Format: Numeric

Questions and instructions

Literal question

102. In what month and year were you born?

MONTH __ __
DON'T KNOW MONTH 98

Description

Definition

DOBCMC (V011) reports the century month code (CMC) for the woman's date of birth.

Century month codes (CMC) are particularly useful for checking the consistency of dates, calculating intervals between events, and imputing 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. The year 1900 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 is:

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

In other words, 1,230 months have elapsed between January 1900 and June 2002. Starting with CMC figures, one can 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 )

The information above is based on "Online Guide to DHS Statistics" (Rutstein and Rojas, 2006) [URL omitted from DDI.].

concept

Concept

var_concept.title	Vocabulary
Core demographic Variables -- TOPICS	IPUMS

Imputation and derivation

Derivation

DOBCMC (V011) is a 4-digit variable.

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