Barrison I G, Littlewood E R, Primavesi J, Sharples A, Gilmore I T, Parkins R A
J R Soc Med. 1981 Jan;74(1):41-3.
Stools have been tested for occult gastrointestinal bleeding in 278 outpatients and 170 hospital inpatients using the Haemoccult and Haemastix methods. Seventeen outpatients (6.1%) and 42 inpatients (24%) were positive with the Haemoccult technique. Thirty-three outpatients (11.9%) and 93 inpatients (54.7%) were positive with the Haemastix test. Following investigation of the Haemoccult-positive patients, only 2 cases (3.4%) were considered false positive. However, the false positive rate with Haemastix was 22.9% which is unacceptable in a screening test. Haemoccult may be useful as a screening test for asymptomatic general practice patients, but a test of greater sensitivity is needed for hospital patients.
采用隐血试验（Haemoccult）和尿潜血试纸法（Haemastix）对278名门诊患者和170名住院患者的粪便进行了潜血检测。采用隐血试验技术，17名门诊患者（6.1%）和42名住院患者（24%）呈阳性。采用尿潜血试纸检测，33名门诊患者（11.9%）和93名住院患者（54.7%）呈阳性。在对隐血试验阳性患者进行检查后，仅2例（3.4%）被认为是假阳性。然而，尿潜血试纸的假阳性率为22.9%，这在筛查试验中是不可接受的。隐血试验可作为无症状全科患者的筛查试验，但对于住院患者需要更高灵敏度的检测。
