Variable Selection Method in Prediction Models: Application in Periodontology

Table 1

Simple statistics for the fatty acid levels in the two groups.

	Group 1 (𝑛=27)			Group 2 (𝑛=29)
	Mean	SD	CV	Mean	SD	CV	𝑃 value
Myristic	1.153	0.402	11.4%	1.258	0.613	16.6%	0.46
Palmitic	23.402	3.593	15.3%	24.529	3.007	12.3%	0.21
Palmitoleic	2.507	1.159	14.1%	2.443	0.944	17.8%	0.82
Stearic	6.955	1.113	15.9%	7.871	1.920	24.4%	0.03*
Oleic	18.519	2.615	20.1%	19.223	3.417	21.6%	0.39
Linoleic	30.055	3.421	46.2%	28.948	4.821	38.5%	0.33
Gammalinolenic	0.386	0.157	38.9%	0.438	0.191	44.6%	0.27
DHGL	1.279	0.373	28.9%	1.327	0.323	24.1%	0.61
Arachidonic	5.711	1.153	34.8%	6.432	1.394	48.4%	0.04*
Alphalinoleic	0.406	0.220	45.3%	0.437	0.202	42.9%	0.59
EPA	0.748	0.341	53.7%	0.564	0.237	45.5%	0.02*
DHA	1.852	0.718	41.0%	1.475	0.657	43.2%	0.04*

Unit: percentage of total moles of FA; DHGL: dihomogammalinoleic acid; EPA: eicosapentaenoic acid; DHA: docosahexaenoic acid.
(*Significant outcome for Student’s 𝑡-test.)