Non-compliance in surveillance for patients with previous resection of large (≥ 1 cm) colorectal adenomas

Table 1 Clinico-pathological features of compliance and non-compliance surveillance for the patients

	Compliance Non-compliance(n = 110) (n = 48)n (%) n (%)		P1
Sex
Male	69 (73.4)	25 (26.6)
Female	35 (54.7)	29 (45.3)	0.015
Age
≤ 62 yr	64 (75.3)	21 (24.7)
> 62 yr	40 (54.8)	33 (45.2)	0.007
Education
< high school degree	83 (65.9)	43 (34.1)
≥ high school degree	21 (65.6)	11 (34.4)	0.979
Size of adenoma
10 -15 mm	51 (62.2)	31 (37.8)
> 15 mm	53 (69.7)	23 (30.3)	0.318
Localisation
Rectum	24	13
Left Colon	50	31
Right Colon	28	10	0.213
Histology
Tubulous	35 (61.4)	22 (38.6)
Tubulovillous	61 (66.3)	31 (33.7)
Villous	8 (88.9)	1 (11.1)	0.268
Dysplasia
Mild	19 (63.3)	11
Moderate	72 (70.6)	30 (29.4)
Severe	13 (50.0)	13 (50.0)	0.135
Family history of CRC
Yes	14 (73.7)	5 (26.3)
No	90 (64.7)	49 (35.3)	0.441
NSAID intake
Yes	26 (76.5)	8 (23.5)
No	78 (62.9)	46 (37.1)	0.140

¹Fisher’s exact 2-sided test.

Table 2 Multivariate analysis of factors significantly associated with non-compliance in univariate analysis

	hazard ratio	95% CI	P1
Sex (female vs male)	2.089	1.051-4.157	0.036
Age (< 60 yr vs > 60 yr)	2.326	1.171-4.621	0.016

¹Cox’s stepwise proportional hazard model.