... 4.5 28 4.1 1 ,21 7 3 .2 34 2. 2 Employment status Professional 1,091 8.3 74 10.8 4,353 11.4 20 2 13 .2 Managerial 4,968 21 .7 191 27 .9 10,134 26 .6 479 31.4 Skilled worker 6, 329 27 .7 199 29 .1 ... (N=1, 526 ) N % N % N % N % Maternal age (yr) < 25 10,945 47.9 327 47.8 17,994 47 .2 746 48.9 25 – 29 7,154 31.3 23 6 34.5 12, 885 33.8 513 33.6 > 29 4,744 20 .8 121 17.7 7 ,27 2 19.1 26 7 ... HCCSCA is based on the Hungarian Congenital Abnormality Registry (HCAR) [18] which is a national-based registry of cases with CAs. Notification of CAs is mandatory for physicians, and most...