RT Journal Article
SR Electronic
T1 Early diagnosis of pregnancy in general practice
JF The Journal of the Royal College of General Practitioners
JO J R Coll Gen Pract
FD British Journal of General Practice
SP 335
OP 338
VO 27
IS 179
A1 E. T. Robinson
A1 J. H. Barber
YR 1977
UL http://bjgp.org/content/27/179/335.abstract
AB The value of the signs and symptoms of pregnancy and of the pregnancy diagnostic test as predictors of pregnancy was estimated for 1,592 women seen in general practice. The presence of a sign or symptom alone is a poor pointer to a diagnosis of pregnancy. The combination of pairs of features improves the value, the best being breast signs combined with either the presence of signs of pregnancy on vaginal examination or a palpable fundus, both giving predictive values of 0·89. The pregnancy diagnostic test alone, however, had a predictive value of 0·91, a value of 1·00 indicating 100 per cent reliability.