Table 2.

Comparison between normal and abnormal colonoscopy for diagnosis by Firth’s penalized logistic regression

​	Abnormal (n = 36)	Normal (n = 37)	OR	p value
FH of colorectal disease	6 (21.4)	1 (2.9)	6.1 (1.13–37.7)	0.035
Laboratory findings
Serum Hb, g/L	115.1±3.3	130.7±3.3	0.68 (0.47–0.79)	0.005
Serum CRP, mg/L	13.3±3.2	3.0±3.3	1.04 (1.00–1.13)	0.043

p values with statistical significance are shown in bold.

OR, odds ratio; FH, family history; Hb, hemoglobin; CRP, C-reactive protein.