| Value | Category | 
                
                    
                    
                        | 9993 | nothing done/not taken to HF | 
                
                    
                    
                        | 9994 | mother not working | 
                
                    
                    
                        | 9995 | miss | 
                
                    
                    
                        | 9999 | na | 
                
                    
                    
                        | 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.