| Re: Age at first marriage calculation using NFHS-4 [message #14480 is a reply to message #14267] |
Wed, 11 April 2018 07:50  |
Bridgette-DHS
Messages: 3199
Registered: February 2013
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Senior Member |
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Following is a response from Senior Data Processing Specialist, Mianmian Yu:
S309 is a reported age in years at the time of marriage, while S308C is century month code of reported date of marriage. Using S308C and V011 to calculate age at marriage is more accurate.
Our tabulation of age at first marriage in the national report was
1) If S308C has a value other than inconsistent ( coded as 9997 ) or don't know ( coded as 9998 ), we used int((S308C - V011) / 12) to calculate age at first marriage.
2) If S308C is inconsistent ( coded as 9997 ) or don't know ( coded as 9998 ), we had to use S309 directly. If S309 is don't know ( coded as 98 ), we treated the case as not applicable.
Hope this helps.
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