| Column | Type | Label | Description | 
          
        
        
          
          
            
  | Country | text | Country of residence at the end of pregnancy (9 digit geography code for Scotland). | Link | 
          
            
  | TimePeriod | text | Financial year of antenatal booking. Data for 2020/21 is shown separately for women booking for antenatal care before (2020/21a: date of booking 1 April 2020 to 27 September 2020 inclusive) and after (2020/21b: 28 September 2020 to 31 March 2021 inclusive) the change to the screening pathway. |  | 
          
            
  | TimePeriodStart | numeric | Start date of Time Period (Format: YYYYMMDD) |  | 
          
            
  | TimePeriodEnd | numeric | End date of Time Period (Format: YYYYMMDD) |  | 
          
            
  | ScreeningChanges2020 | text |  |  | 
          
            
  | PregnancyType | text | Flag indicating the data are for singleton pregnancies only (pregnancies involving one baby). |  | 
          
            
  | FirstLineTestType | text | First Line Screening Test Type. |  | 
          
            
  | ConditionTested | text | Condition tested (Down's syndrome and/or Edwards' syndrome/Patau's syndrome). |  | 
          
            
  | NumberOfScreeningResultsABU20Weeks | text | Number of women booking for antenatal care under 20 weeks gestation with any combined or quadruple screening result available (Down's syndrome and/or Edwards' syndrome/Patau's syndrome). |  | 
          
            
  | NumberOfScreeningResultsABU20WeeksQF | text | Qualifier for NumberOfScreeningResultsABU20Weeks. | Link | 
          
            
  | NumberOfHigherChanceResultsDS | text | Number of women with a higher chance result for Down's syndrome only. |  | 
          
            
  | NumberOfHigherChanceResultsDSQF | text | Qualifier for NumberOfHigherChanceResultsDS. | Link | 
          
            
  | NumberOfHigherChanceResultsESPS | text | Number of women with a higher chance result for Edwards' syndrome/Patau's syndrome only. |  | 
          
            
  | NumberOfHigherChanceResultsESPSQF | text | Qualifier for NumberOfHigherChanceResultsESPS. | Link | 
          
            
  | NumberOfHigherChanceResultsDSAndESPS | text | Number of women with a dual higher chance result for both Down's syndrome and Edwards' syndrome/Patau's syndrome. |  | 
          
            
  | NumberOfHigherChanceResultsDSAndESPSQF | text | Qualifier for NumberOfHigherChanceResultsDSAndESPS. | Link | 
          
            
  | NumberOfNoHigherChanceResults | text | Number of women with no higher chance result. |  | 
          
            
  | NumberOfNoHigherChanceResultsQF | text | Qualifier for NumberOfNoHigherChanceResults. | Link |