Word: biostatistician
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Dates: during 1970-1979
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...three researchers-Drs. Ellis Cohen and J. Weldon Bellville and Biostatistician Byron Brown-conducted parallel studies on two groups of women who serve in hospitals. The first study reviewed the miscarriage rates of 159 nurses. Among the 67 operating-room nurses queried, 29.7% of the pregnancies occurring over a five-year period ended in miscarriage; among the 92 nurses assigned elsewhere in the hospital, only 8.8% of pregnancies ended in spontaneous abortion. The second study involved 131 women physicians, 50 of them anaesthesiologists, the rest used as a control group. Only 10% of the pregnancies that occurred in the control...