RT Journal Article SR Electronic T1 Plasma diamine oxidase levels in pregnancy complicated by threatened abortion. JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 187 OP 188 DO 10.1136/jcp.34.2.187 VO 34 IS 2 A1 M Legge A1 G B Duff YR 1981 UL http://jcp.bmj.com/content/34/2/187.abstract AB Plasma diamine oxidase levels were assayed in 66 patients who presented with pregnancy complicated by threatened abortion. Levels within the normal range were associated with continuing pregnancies, whereas levels below the normal range were associated with subsequent abortion. Among those patients in whom gestation was greater than eight weeks, 66.6% of diamine oxidase levels correctly predicted the pregnancy outcome. Assay of the diamine oxidase levels at eight weeks of gestation or less gave little useful information.