| 
      
        | Likely decision if partners are carriers
 | Intervention group | Control group | Intervention grp. vs control grp (post-intervention) |  
        | Pre n=218
 Freq (%)
 | Post n=216
 Freq (%)
 | % change
 | p value
 | Pre n=196
 Freq (%)
 | Post n=194
 Freq(%)
 | % Change
 | P Value
 | P value
 |  
        | Change Marriage Plan | 88 (44.4)
 | 93 (43.3)
 | -1.1 | 0.57 | 94(48.0) | 94(49.0) | 1 | 0.922 | 0.273 |  
        |  |  
        | Accept to be child-less | 8 (4.1)
 | 1 (1.6)
 | -2.461 | 0.037* | 1 (0.5)
 | 3 (1.6)
 | 1.1 | 0.371* | 0.348 |  
        |  |  |  |  |  |  |  |  |  |  |  
        | Use a sperm donor | 9 | 2 | -3.7 | 0.069* | 3 | 3 | 0.1 | 1.000* | 0.904 |  
        |  | (4.6) | (0.9) |  |  | (1.5) | (1.6) |  |  |  |  
        |  |  
        | Do prenatal screening | 17 (8.6)
 | 19 (8.8)
 | 0.2 | 0.706 | 15 (7.7)
 | 19 (9.9)
 | 2.2 | 0.454 | 0.753 |  
        |  |  
        | Limit child bearing | 27 (13.7)
 | 30 (14.0)
 | 0.3 | 0.643 | 26 (13.3)
 | 22 (11.5)
 | -1.8 | 0.563 | 0.439 |  
        |  |  
        | Accept if child has  SCD | 24 (12.2)
 | 8 (3.7)
 | -8.5 | 0.004 | 15 (7.7)
 | 8 (4.2)
 | -3.5 | 0.139 | 0.826 |  
        |  |  
        | Don't know | 51 | 61 | 2.34 | 0.249 | 50 | 45 | -2.8 | 0.595 | 0.244 |  
        |  | (25.9) | (28.2) |  |  | (25.9) | (23.1) |  |  |  |  |