Table 2.
Coverage of neonatal screening in the studies
| Author | Relevance | Location | Period | Live births (Nº) | N | Coverage (%) |
| Brandalise S(12) | High | Campinas - SP | 1992-2000 | IC | 281.884 | IC |
| Diniz D(2) | High | Distrito Federal | 2004-2006 | 136.662 | 116.271 | 85.07 |
| Pinheiro SL(3) | Low | Fortaleza - CE | 2001-2002 | 40.532 | 389 | 0.95 |
| Holsbach DR(15) | High | Mato Grosso do Sul | 2000-2005 | 242.732 | 190.809 | 78.60 |
| Araújo MCPE (6) | Low | Natal - RN | 2001 | 13.818 | 1.940 | 14.03 |
| Watanabe AM (10) | High | Paraná | 2002-2004 | 482.249 | 548.810 | 100.00 |
| Sommer CK (5) | High | Rio Grande do Sul | 2003-2004 | 151.074 | 117.320 | 77.65 |
| Magalhães PKR(9) | High | Ribeirão Preto - SP | 2002-2005 | VRE | 103.021 | 94.50 |
| Lobo CLC (4) | Medium | Rio de Janeiro | 2000-2001 | 242.360 | 99.260 | 40.00 |
| Adomo EV(16) | Low | Salvador - BA | 2000 | IC | 581 | IC |
| Ducatti RP(14) | Low | S. José Rio Preto - SP | 1997-1998 | 5.158 | 913 | 17.70 |
| Pultrini T(13) | Medium | Western São Paulo State | 2001-2003 | IC | 72.510 | IC |
IC = Impossible to calculate; VRE = Value reported in the Study; N = number of newborns evaluated