Association between Obesity, Serum Lipids, and Colorectal Polyps in Old Chinese People

Table 1

Comparisons of demographic and clinical characteristics among the four groups.

Variables	Normal control	Right colorectal polyps	Left colorectal polyps	Both right and left polyps	𝑃 value
	112	38	53	41
Age (years)	74.88±11.48	75.32±11.39	71.51±12.08	77.34±11.20	0.101
Female (𝑛)	17	3	7	5	0.717
Hyperplastic polyp (𝑛)		7	15	3	1.000
Tubular adenoma (𝑛)		30	35	33	1.000
Tubulovillous adenoma (𝑛)		1	3	3	1.000
BMI (kg/m^2)	23.14±2.03	23.67±3.21	24.05±5.611	24.91±2.64^a	0.034
Hypertension (𝑛)	32	9	11	9	0.520
SBP (mmHg)	131.23±12.90	130.74±14.23	131.81±11.84	129.78±12.58	0.889
DBP (mmHg)	74.60±9.37	73.24±8.27	74.36±9.11	74.73±9.05	0.867
CEA (ng/mL)	2.30±1.35	2.35±1.08	2.02±1.28	2.20±2.15	0.699
CA19-9 (U/mL)	13.35±15.19	16.14±14.00	17.42±17.36	18.56±30.55	0.397
Total cholesterol (mmol/L)	4.01±0.80	4.04±1.02	4.31±0.90^b	4.92±1.25^ace	0.000
Triglycerides (mmol/L)	1.06±0.49	1.14±0.59	1.65±1.48^ad	1.65±1.15^ad	0.000
Fasting glucose (mmol/L)	5.55±0.99	5.40±0.96	5.78±1.43	6.07±2.47^d	0.141
Creatinine (umol/L)	99.68±29.38	118.68±45.27^a	94.88±21.36^c	103.15±26.48^d	0.002
Urinary nitrogen (mmol/L)	6.14±1.37	6.98±2.98^b	5.69±2.16^c	6.31±2.09	0.026

Data are presented as mean ± SD unless otherwise indicated. BMI: body mass index; SBP: systolic blood pressure; DBP: diastolic blood pressure; CEA: carcinoembryonic antigen; CA19-9: carbohydrate antigen 19-9.
^aSignificantly different from normal control group (𝑃<0.01). ^bSignificantly different from normal control group (𝑃<0.05). ^cSignificantly different from right colorectal polyps group (𝑃<0.01). ^dSignificantly different from right colorectal polyps group (𝑃<0.05). ^eSignificantly different from left colorectal polyps group (𝑃<0.01).