BMC Microbiology

Table 1 Descriptive table for the characteristics of study subjects

From: The mediating roles of the oral microbiome in saliva and subgingival sites between e-cigarette smoking and gingival inflammation

		EC users				Non-users
		Mean	Median	Min, Max	IQR	Mean	Median	Min, Max	IQR
Age (unit: years)		23.84	23	18, 34	20, 27	24.40	25	18, 34	21, 28
		# subjects		% subjects		# subjects		% subjects
Gingival Inflammation	Absent	30		40.00		47		62.67
Gingival Inflammation	Present	42		56.00		27		36.00
Gender	Male	61		81.33		55		73.33
Gender	Female	14		18.66		20		26.67
Freq. of brushing teeth	< 1	8		10.67		1		1.33
	1	29		38.67		16		21.33
	> 1	38		50.67		58		77.33

^* Freq. of brushing teeth: How often do you brush your teeth? < 1: less than once per day, 1: once per day, > 1: Twice or more per day

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ISSN: 1471-2180

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