Codes and Frequencies
For sample persons age 18 to 44, CSRISKPREM reports if the respondent believes cigarette smoking during pregnancy definitely increases, probably increases, probably does not or definitely does not increase the chances of premature birth.
For related variables, please use the IPUMS NHIS search function and drop-down menus.
- 1985; 1990: Sample persons age 18+ to 44.
- 1985, 1990
- 1985, 1990 : SAMPWEIGHT