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Description

[ PRELIMINARY VARIABLE: Variable description may change once we confirm the universe and assess the comparability of this variable over time. ]

For persons eligible for the Self-Administered Questionnaire (SAQELIG), SFFLAG indicates whether values on PCS (SF-12 Physical Component Summary score) and MCS (SF-12 Mental Component Summary score) were imputed. In some cases, a value on PCS and MCS could not be computed because the amount of missing data was too great. In 2000-2002, these cases were marked as "Yes" for the SFFLAG imputation flag variable. In contrast, these cases were marked as "No" for the SFFLAG imputation flag variable beginning in 2003.

Codes and Frequencies



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Comparability

The comparability of this variable over time has not yet been assessed.

Universe

The universe for this variable has not yet been confirmed.

Availability

  • 2000-2016

Weights

Flags

This variable has no flags.