World Journal of Surgical Oncology

Table 4 Factor analysis including both independent and dependent variables studied in relation to colorectal cancer morphology ^a,b

From: Clinicopathological analysis of colorectal cancer: a comparison between emergency and elective surgical cases

	Factor (component)^c
	1	2	3	4	5	6	7
Nature of surgery	0.444	−0.077	−0.135	−0.239	0.418	0.302	−0.348
Gender	0.021	−0.054	0.031	−0.161	0.485	−0.448	0.156
Age group	−0.232	0.006	0.060	0.024	0.098	0.458	0.493
Location	0.014	−0.195	−0.225	−0.119	−0.693^d	−0.043	−0.028
>1 tumor	−0.017	0.013	−0.049	−0.172	0.225	0.644^d	0.025
Tumor diameter	0.027	0.216	0.320	0.648^d	0.150	−0.065	−0.184
AJCC stage	0.758^d	0.074	−0.030	0.368	0.008	0.145	−0.055
Tumor (T) stage	0.519	0.157	−0.058	0.559	0.208	−0.030	0.008
Node (N) stage	0.754^d	0.080	0.009	0.173	−0.113	0.101	−0.026
Differentiation	−0.236	−0.159	−0.776^d	−0.055	−0.025	0.012	0.015
Mucin production	0.001	0.950^d	0.023	0.025	0.073	0.027	−0.040
Mucin type	0.083	0.926^d	0.092	0.039	0.103	0.018	0.001
Crohn-like^e	−0.153	0.048	0.089	0.225	0.657^d	0.019	−0.021
TILs	−0.207	0.097	0.611^d	−0.031	0.205	0.017	0.085
Desmoplasia	0.206	−0.023	−0.372	0.471^d	0.157	−0.044	0.217
Necrosis	0.041	−0.445	−0.008	0.601	−0.021	0.016	0.177
Vascular invasion	0.586^d	−0.110	0.114	−0.023	0.038	−0.142	−0.002
Perineural invasion	0.609^d	0.015	−0.041	−0.058	−0.090	−0.134	0.168
Medullary type	−0.027	−0.118	0.837 ^d	0.049	0.093	0.063	0.046
Budding	0.379	−0.122	0.086	0.041	0.040	0.004	0.683^d
Tumor margin	0.547^d	0.101	−0.255	−0.026	−0.119	−0.069	0.356
Family history	0.006	−0.006	−0.084	−0.038	0.128	−0.522^d	−0.025

AJCC American Joint Committee on Cancer, TILs tumor-infiltrating lymphocytes.
^aVariables with loading of >0.40 are usually applied as meaningful loadings on the factor. If a variable has a meaningful loading on more than one component, that variable should be ignored in the interpretation.
^bA minus (−) before the value indicates a negative correlation.
^cFactors: 1, Variables related to aggressiveness and extent of tumor spread; 2, factors related to mucin production/mucin type; 3, factors related to microsatellite instability type of colorectal cancer; 4, factors related to tumor size and desmoplastic response to tumor growth; 5, location and peri-tumor lymphocytic infiltration; 6, family history and multiple tumors; 7, budding.
^dThe variable is applied as a meaningful loading on that component.
^eCrohn-like lymphocytic reaction.

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