Brief Article
Copyright ©2012 Baishideng Publishing Group Co.
World J Gastroenterol. Aug 21, 2012; 18(31): 4169-4174
Published online Aug 21, 2012. doi: 10.3748/wjg.v18.i31.4169
Table 1 Detection rates of red spots by suspected blood indicator according to the background color
ColorDetection rate (%)Rank
Very pale yellow16/150 (10.7)6
Yellow28/150 (18.7)3
Very pale magenta64/150 (42.7)1
Light grayish pink19/150 (12.7)4
Burnt sienna36/150 (24.0)2
Deep brown18/150 (12.0)5
Dark brown5/150 (3.3)7
Total186/1050 (17.7)P < 0.001
Table 2 Differences in detection rate among background colors using Bonferroni’s correction
ColorDetection rate (%)Dark brownVery pale yellowDeep brownLight grayish pinkYellowBurnt siennaVery pale magenta
Dark brown3.310.01300.00490.00290.00000.00000.0000
Very pale yellow10.710.71610.59010.05060.00230.0000
Deep brown12.010.86090.10970.00690.0000
Light grayish pink12.710.15350.01130.0000
Burnt sienna24.010.0006
Very pale magenta42.71
Adjusted α0.002381
Table 3 Diagnostic accuracy of suspected blood indicator according to the literature (%)
Liangpunsakul et al[8]
Signorelli et al[12]
D’Halluin et al[10]
Buscaglia et al[9]
Kim et al[11]