| Value | Category | 
                                    
                    
                        | 0 | mother intvd, not elig | 
                                    
                    
                        | 998 | mother in hh, not complete intv | 
                                    
                    
                        | 999 | mother not in hh | 
                                    
                    
                        | Sysmiss |  | 
                            
            Warning: these figures indicate the number of cases found in the data file. They cannot be interpreted as summary statistics of the population of interest.