lokungenani ema80% ebantfwana labaphe tfwe yids babelekwa boma ke labangaphansi kweminya ka lema35, nanoma bomake labangetulu kweminyaka lema35 batsatfwa njenga labasebungotini lobukhulu bekutfola bantfwana labaneds.

ubunci nane i80% yabantwana aba chatshazelwe yids bazalwa ngoomama abangaphantsi kweminyaka engama35, ngaphandle kwabasetyhini abangaphezulu kweminyaka engama35 bathathwa nje ngabasemngciphekweni ophezulu wokuba nomntwa na onedown syndrome .
