Impact of perioperative transfusion in patients undergoing resection of colorectal cancer liver metastases: A population-based study

doi:10.12998/wjcc.v7.i10.1093

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World Journal of Clinical Cases

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2307-8960

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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Retrospective Cohort Study

World J Clin Cases. May 26, 2019; 7(10): 1093-1102
Published online May 26, 2019. doi: 10.12998/wjcc.v7.i10.1093

Table 1 Characteristics of the study population (unweighted n = 2018, weighted n = 9991)

	Total	No transfusion	Perioperative transfusion	P-value¹
	n = 2018	n = 1538	n = 480
Demographic data
Age
<70 yr	1532 (76.04)	1195 (77.88)	337 (70.12)	0.0004^a
≥70 yr	486 (23.96)	343 (22.12)	143 (29.88)
Sex
Male	1112 (55.10)	870 (56.59)	242 (50.32)	0.01^a
Female	903 (44.90)	665 (43.41)	238 (49.68)
Race
White	1251 (76.29)	955 (76.94)	296 (74.22)	0.10
Black	175 (10.53)	121 (9.63)	54 (13.32)
Hispanic	115 (7.07)	86 (7.04)	29 (7.16)
Asian/Pacific	55 (3.32)	40 (3.21)	15 (3.62)
Others	46 (2.80)	39 (3.16)	7 (1.68)
Household income
Q1	484 (24.34)	355 (23.59)	129 (26.90)	0.14
Q2	473 (23.79)	369 (24.34)	104 (22.06)
Q3	471 (23.93)	372 (24.89)	99 (20.87)
Q4	541 (27.93)	400 (27.22)	141 (30.16)
Type of admission
Elective	1676 (83.35)	1311 (85.59)	365 (76.12)	<0.0001^a
Emergency	338 (16.65)	224 (14.41)	114 (23.88)
Insurance status
Medicare/Medicaid	877 (43.31)	628 (40.62)	249 (51.97)	<0.0001^a
Private including HMO	1027 (51.05)	816 (53.25)	211 (43.95)
Self-pay/no charge/other	114 (5.65)	94 (6.13)	20 (4.07)
Clinical data
Hepatic precondition
No	1967 (97.41)	1494 (97.07)	473 (98.52)	0.24
Steatosis/fibrosis	44 (2.23)	38 (2.52)	6 (1.29)
Cirrhosis	7 (0.36)	6 (0.41)	1 (0.19)
Primary tumor site
Colon	1595 (79.04)	1194 (77.64)	401 (83.59)	0.003^a
Rectum	423 (20.95)	344 (22.36)	79 (16.40)
Extent of liver resection
Partial hepatectomy	1541 (76.46)	1204 (78.39)	337 (70.19)	<0.0001^a
Hepatic lobectomy	477 (23.54)	334 (21.60)	143 (29.81)
Laparoscopic procedure
No	1971 (97.64)	1498 (9737.)	473 (98.52)	0.15
Yes	47 (2.36)	40 (2.63)	7 (1.48)
Robotic-assisted
No	2010 (99..59)	14532 (99.59)	478 (99.56)	0.91
Yes	8 (0.41)	6 (0.40)	2 (0.43)
Comorbidity
Chronic anemia	422 (20.71)	247 (15.87)	175 (36.37)	<0.0001^a
Congestive heart failure	59 (2.95)	35 (2.31)	24 (5.02)	0.002^a
Chronic pulmonary disease	188 (9.26)	135 (8.72)	53 (11.02)	0.12
Diabetes	293 (14.32)	221 (14.16)	72 (14.84)	0.70
Hypertension	848 (41.82)	625 (40.43)	223 (46.32)	0.02^a
Obesity	118 (5.85)	89 (5.80)	29 (6.02)	0.86
Renal failure	39 (1.89)	30 (1.936)	9 (1.79)	0.86
Hospital data
Hospital bed size
Small	212 (10.21)	162 (10.28)	50 (9.97)	0.007^a
Medium	327 (16.58)	227 (15.15)	100 (21.12)
Large	1453 (73.22)	1125 (74.56)	328 (68.91)
Location of hospital
Rural	77 (3.71)	62 (3.89)	15 (3.14)	0.34
Urban	1915 (96.29)	1452 (96.10)	463 (96.87)
Teaching status of hospital
Non-teaching	419 (20.65)	284 (18.46)	135 (27.64)	<0.0001^a
Teaching	1573 (79.35)	1230 (81.54)	343 (72.36)
Region of hospital
Northeast	437 (22.65)	351 (23.79)	86 (18.97)	0.11
Midwest	480 (23.71)	360 (23.27)	120 (25.11)
South	737 (35.65)	566 (35.99)	171 (34.53)
West	364 (17.98)	261 (16.94)	103 (21.39)

Data are presented as unweighted counts (weighted proportion). Percentages may not add up to 100% due to missing data. Q1: 0-25^th percentile; Q2: 26^th to 50^th percentile; Q3: 51^st to 75^th percentile; Q4: 76^th to 100^th percentile.

¹χ² test.

^aP < 0.05, non-transfusion group vs transfusion group.

Full Size Table

Citation: Long B, Xiao ZN, Shang LH, Pan BY, Chai J. Impact of perioperative transfusion in patients undergoing resection of colorectal cancer liver metastases: A population-based study. World J Clin Cases 2019; 7(10): 1093-1102
URL: https://www.wjgnet.com/2307-8960/full/v7/i10/1093.htm
DOI: https://dx.doi.org/10.12998/wjcc.v7.i10.1093

Long B, Xiao ZN, Shang LH, Pan BY, Chai J. Impact of perioperative transfusion in patients undergoing resection of colorectal cancer liver metastases: A population-based study. World J Clin Cases 2019; 7(10): 1093-1102 [PMID: 31183340 DOI: 10.12998/wjcc.v7.i10.1093]

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