Laboratory Medicine and Quality Assurance

Table. 7.

Results of fecal occult blood quantitative test

Instruments Specimen no. No. of participants ng/mL µg/g stool
Mean Minimum Maximum Mean Minimum Maximum
Eiken CS-20-01 178 8.6 0 565 1.7 0 113.0
Kyowa CS-20-01 34 0 0 3 0 0 3.0
Alfresa NS-Prime CS-20-01 47 6.2 0 13 1.2 0 2.5
Alfresa NS-Plus C CS-20-01 19 85.6 58 99 16.3 11.0 18.8
Eiken CS-20-02 178 6.3 0 480 1.3 0 96.0
Kyowa CS-20-02 34 0 0 1 0 0 1.0
Alfresa NS-Prime CS-20-02 47 4.5 0 14 0.9 0 2.7
Alfresa NS-Plus C CS-20-02 19 84.2 70 95 16.0 13.3 18.1
Eiken CS-20-03 178 289.9 41 757 58.0 8.2 151.4
Kyowa CS-20-03 34 69.5 21 129 69.5 21.0 129.0
Alfresa NS-Prime CS-20-03 47 245.9 51 285 46.7 9.7 54.2
Alfresa NS-Plus C CS-20-03 19 245.1 219 294 46.6 41.6 55.9
Eiken CS-20-04 180 287.1 83 680 57.4 16.6 136.0
Kyowa CS-20-04 33 85.7 2 114 85.7 2.0 114.0
Alfresa NS-Prime CS-20-04 52 261.5 188 361 49.7 31.5 51.3
Alfresa NS-Plus C CS-20-04 16 238.7 166 270 45.4 31.5 51.3
Eiken CS-20-05 180 3.4 0 20 0.7 0 4.0
Kyowa CS-20-05 33 0.3 0 2 0.3 0 2.0
Alfresa NS-Prime CS-20-05 52 8.4 2 15 1.6 0.4 2.9
Alfresa NS-Plus C CS-20-05 16 72.9 58 85 13.9 11.0 16.2
Eiken CS-20-06 180 113.8 39 285 22.8 7.8 57.0
Kyowa CS-20-06 33 37.7 22 46 37.7 22.0 46.0
Alfresa NS-Prime CS-20-06 52 105.1 61 141 20.0 11.6 26.8
Alfresa NS-Plus C CS-20-06 16 120.4 99 133 22.9 18.8 25.3

Unusual results are indicated in bold type. The instruments used were from Eiken Chemical Co. (Tokyo, Japan), Kyowa Chemical Industry Co. (Kagawa, Japan), NS-Plus C, and NS-Prime (Alfresa Pharma Co., Osaka, Japan).
Lab Med Qual Assur 2022;44:1~9 https://doi.org/10.15263/jlmqa.2022.44.1.1
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