Causes of low utilization of amniocentesis by women of advanced maternal age

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Abstract
The objectives of this study were to determine current usage of amniocentesis by women of advanced maternal age in a southwestern Ohio county and to determine potential usage levels by surveying women not utilizing the procedure to understand their reasons. For women age 35 and older giving birth in Hamilton County, Ohio, the estimated percentage using amniocentesis was 3.9 in 1978, 7.6 in 1979, and 13.3 in 1980. Approximately comparable statewide utilization rates were 7.0, 11.5, and 17.2 respectively. A telephone survey during the summer of 1980 of 81 Hamilton County women age 35 and older recently giving birth to a normal baby found four main reasons why they did not utilize amniocentesis: (1) they did not feel at an increased risk (29.6 per cent); (2) they had never heard of the test (24.7 per cent); (3) they were opposed to abortion (21.0 per cent); and (4) no one suggested they have the test done (19.8 per cent). Their physicians reported that 81 per cent of these women had received prenatal counseling. Thus, of those counseled, over two‐thirds apparently missed at least one essential message of the counseling they were presumably provided. These findings, coupled with 47.7 per cent of women who knew about amniocentesis saying they would most likely use it if they became pregnant again and their physician recommended it, indicate that utilization of prenatal diagnosis by at least 50 per cent of women age 35 and older is likely with greater public education and greater support of the procedure by obstetricians.