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Date of respondent's first birth, in century months (Solar Hijri calendar)
Group: Fertility

DOB1STKIDCMC_AF (V211_AF) is a 4-digit variable.


9998 = Missing
9999 = NIU (not in universe)


DOB1STKIDCMC_AF (V211_AF) reports the century month code (CMC) for the date of the woman's first birth, according to the Solar Hijri calendar. This variable is only available for Afghan samples.

For detailed information about the calculation and interpretation of CMC data about the date of the woman's first birth, see DOB1STKIDCMC (V211).


DOB1STKIDCMC_AF (V211_AF) has no comparability problems across Afghan samples.

All standard date variables in Afghanistan DHS samples are given in the Solar Hijri calendar. The Solar Hijri calendar year consists of 12 months of 29 to 31 days. The first 6 months (Hamal through Sonbola) each contain 31 days, the following 5 months (Mizan through Dalvae) each contain 30 days, and the last month (Hut) contains 29 days (30 in a leap year). The Solar Hijri calendar begins on the March equinox, which usually falls around March 21 in the Gregorian calendar. In general, the Solar Hijri calendar is 621 or 622 years behind the Gregorian calendar.

Comparability - Standard DHS

DOB1STKIDCMC_AF (V211_AF) is included as a standard variable in every phase of the standard DHS recode for Afghan samples.


  • Afghanistan 2015: Ever-married women age 15-49 who have ever given birth.
  • Afghanistan: 2015-C, 2015-W, 2015-B