Attributes of this Class are:
| CIGARETTES PER DAY | ||
| MOTHER CURRENT SMOKER AT BOOKING INDICATOR | ||
| NUMBER OF YEARS SMOKED | ||
| SMOKING STATUS | ||
| SMOKING STATUS FOR MATERNITY | 
Classes
| CIGARETTES PER DAY | ||
| MOTHER CURRENT SMOKER AT BOOKING INDICATOR | ||
| NUMBER OF YEARS SMOKED | ||
| SMOKING STATUS | ||
| SMOKING STATUS FOR MATERNITY |