Demographic and Health Survey 1996-1997 - IPUMS Subset

Bangladesh, 1996 - 1997

Reference ID

BGD_1996_DHS_v01_M_v02_A_IPUMS

Producer(s)

National Institute of Population Research and Training (NIPORT) [Bangladesh], Mitra and Associates, and Macro International Inc., Minnesota Population Center

Metadata

DDI/XML JSON

Created on

Sep 19, 2018

Last modified

Sep 19, 2018

Page views

36574

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

Data file: BGD1997-C.dat

Overview

Type: Continuous

Decimal: 0

Start: 250

End: 253

Width: 4

Range: -

Format: Numeric

Questions and instructions

Literal question

105. In what month and year were you born?
USE CODES BELOW FOR MONTHS
IF SHE DOES NOT KNOW, WRITE 'D K' IN BOXES.

BENGALI 1

MONTH __
YEAR 13__

01 BAISHAK
02 JAISTHA
03 ASHAR
04 SRABAN
05 BADHRA
06 ASHWIN
07 KARTIK
08 AGRAHAYAN
09 POUSH
10 MAGH
11 FALGUN
12 CHOITRA

ENGLISH 2

MONTH __
YEAR 19__

01 JANUARY
02 FEBRUARY
03 MARCH
04 APRIL
05 MAY
06 JUNE
07 JULY
08 AUGUST
09 SEPTEMBER
10 OCTOBER
11 NOVEMBER
12 DECEMBER

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 - 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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