This is a 4-digit variable that represents a century-month value (months since 1900) of a date in time. The following values represent NIU (not in universe) or missing cases:
9995 = Not interviewed (female questionnaire)
9998 = No response or missing
9999 = NIU (not in universe)
Description
For women aged 15-49 who had used a form of birth control in the past 12 months, but are not using one currently, FPRECMETHSTOPCMC indicates the date that they began using this form of birth control before they stopped.
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 relevant events for PMA2020 occurred during the twentieth or twenty-first centuries. The month of the event is added to the previous result, using the following formula:
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).
The question associated with this variable was included in the female questionnaire.
Universe
- Women aged 15-49 who had used a family planning method in the last 12 months, but are not using one currently.
Availability
- Cote d'Ivoire: 2017
- India: 2017-2018
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