Beverage intake preference and bowel preparation laxative taste preference for colonoscopy

Table 1 Association of demographic and lifestyle characteristics with bowel preparation taste preference

Characteristics	n	Preferred unflavored PEG (n = 70)		Preferred flavored PEG (n = 534)		Preferred moviprep (n = 173)
		n (%)	OR (95%CI)	n (%)	OR (95%CI)	n (%)	OR (95%CI)
Age ≥ 50 yr
No	421	32 (7.6)	Reference	283 (67.2)	Reference	106 (25.2)	Reference
Yes	356	38 (10.6)	1.45 (0.89-2.38)	251 (70.5)	1.17 (0.86-1.58)	67 (18.8)	0.69 (0.49-0.97)
Sex
Male	340	21 (6.2)	Reference	242 (71.2)	Reference	77 (22.7)	Reference
Female	432	48 (11.1)	1.90 (1.11-3.24)	288 (66.7)	0.81 (0.60-1.10)	96 (22.2)	0.98 (0.69-1.37)
Race
Non-blacks	120	12 (10.0)	Reference	83 (69.2)	Reference	25 (20.8)	Reference
Blacks	657	58 (8.8)	0.87 (0.45-1.68)	451 (68.7)	0.98 (0.64-1.49)	148 (22.5)	1.10 (0.69-1.78)
Marital status
Unmarried	455	38 (8.4)	Reference	314 (69.0)	Reference	103 (22.6)	Reference
Married	169	13 (7.7)	0.91 (0.47-1.76)	110 (65.1)	0.84 (0.57-1.22)	46 (27.2)	1.28 (0.85-1.91)
College education
No	418	41 (9.8)	Reference	299 (71.5)	Reference	78 (18.7)	Reference
Yes	343	27 (7.9)	0.79 (0.47-1.31)	228 (66.5)	0.79 (0.58-1.07)	88 (25.7)	1.50 (1.06-2.12)
Yearly income < $25000
No	437	33 (7.6)	Reference	302 (69.1)	Reference	102 (23.3)	Reference
Yes	268	29 (10.8)	1.49 (0.88-2.51)	181 (67.5)	0.93 (0.67-1.29)	58 (21.6)	0.91 (0.63-1.31)
BMI
< 25 kg/m2	223	18 (8.1)	Reference	150 (67.3)	Reference	55 (24.7)	Reference
25-29 kg/m2	258	25 (9.7)	1.22 (0.65-2.30)	172 (66.7)	0.97 (0.66-1.42)	61 (23.6)	0.95 (0.62-1.44)
≥ 30 kg/m2	275	26 (9.5)	1.19 (0.63-2.23)	199 (72.4)	1.27 (0.87-1.87)	50 (18.7)	0.68 (0.44-1.05)
History of smoking
No	485	38 (7.8)	Reference	334 (68.9)	Reference	113 (23.3)	Reference
Yes	286	32 (11.2)	1.48 (0.90-2.43)	195 (68.2)	0.97 (0.71-1.33)	59 (20.6)	0.86 (0.60-1.22)
Alcohol
No	311	26 (8.4)	Reference	216 (69.5)	Reference	69 (22.2)	Reference
Yes	457	42 (9.2)	1.11 (0.66-1.85)	312 (68.3)	0.95 (0.69-1.29)	103 (22.5)	1.02 (0.72-1.44)
Health history
Diabetes
No	661	51 (8.8)	Reference	453 (68.5)	Reference	150 (22.7)	Reference
Yes	107	11 (10.3)	1.19 (0.60-2.35)	76 (71.0)	1.13 (0.72-1.76)	20 (18.7)	0.78 (0.47-1.32)
Hypertension
No	521	48 (9.2)	Reference	341 (65.5)	Reference	132 (25.3)	Reference
Yes	248	22 (8.9)	0.96 (0.57-1.63)	188 (75.8)	1.65 (1.17-2.33)	138 (15.3)	0.53 (0.36-0.79)

Missing data: sex = 5; marital status = 153; education = 16; income = 72; BMI = 21; smoking status = 6; alcohol = 9; diabetes = 9; hypertension = 8. PEG: Polyethylene glycol; BMI: Body mass index.

Table 2 Association of beverage intake preferences with bowel preparation taste preference

Beverage intake	n	Preferred unflavored PEG (n = 70)		Preferred flavored PEG (n = 534)		Preferred Moviprep (n = 173)
		n (%)	OR (95%CI)	n (%)	OR (95%CI)	n (%)	OR (95%CI)
Coffee intake pattern
Don't drink coffee	265	22 (8.3)	Reference	183 (69.1)	Reference	60 (22.6)	Reference
No milk, no sugar	41	4 (9.8)	1.19 (0.39-3.66)	27 (65.9)	0.86 (0.43-1.73)	10 (24.4)	1.10 (0.51-2.38)
With sugar, no milk	42	2 (4.8)	0.55 (0.13-2.44)	34 (81.0)	1.90 (0.84-4.29)	6 (14.3)	0.57 (0.23-1.42)
With milk, no sugar	65	9 (13.9)	1.78 (0.78-4.06)	42 (64.6)	0.82 (0.46-1.45)	14 (21.5)	0.94 (0.49-1.81)
With milk, with sugar	336	31 (9.2)	1.12 (0.63-1.99)	230 (68.5)	0.97 (0.69-1.38)	75 (22.3)	0.98 (0.67-1.44)
Tea intake pattern
Don't drink tea	138	14 (10.1)	Reference	96 (69.6)	Reference	28 (20.3)	Reference
No milk, no sugar	89	6 (6.7)	0.64 (0.24-1.73)	63 (70.8)	1.06 (0.59-1.90)	20 (22.5)	1.14 (0.60-2.18)
With sugar, no milk	336	30 (8.9)	0.87 (0.44-1.69)	240 (71.4)	1.09 (0.71-1.69)	66 (19.6)	0.96 (0.59-1.57)
With milk, no sugar	25	2 (8.0)	0.77 (0.16-3.62)	16 (64.0)	0.78 (0.32-1.90)	7 (28.0)	1.53 (0.58-4.02)
With milk, with sugar	153	14 (9.2)	0.89 (0.41-1.94)	96 (62.8)	0.74 (0.45-1.20)	43 (28.1)	1.54 (0.89-2.65)
Carbonated drinks
Regular soda intake
No	269	27 (10.0)	Reference	180 (66.9)	Reference	62 (23.1)	Reference
Yes	482	41 (8.5)	0.83 (0.50-1.39)	336 (69.7)	1.14 (0.83-1.57)	105 (21.8)	0.93 (0.65-1.33)
Diet soda intake
No	493	43 (8.7)	Reference	336 (68.2)	Reference	114 (23.1)	Reference
Yes	218	19 (8.7)	1.00 (0.57-1.76)	155 (71.1)	1.15 (0.81-1.63)	44 (20.2)	0.84 (0.57-1.24)
Prefers the taste of diet soda to regular soda
No	582	47 (8.1)	Reference	402 (69.1)	Reference	133 (22.9)	Reference
Yes	111	13 (11.7)	1.51 (0.79-2.89)	76 (68.5)	0.97 (0.63-1.51)	22 (19.8)	0.83 (0.50-1.38)

PEG: Polyethylene glycol.