Table 2.

Descriptive statistics of volatile sulfur compound levels among demographic data

		Frequency	Percentage	Mean of VSC level ± SD (ppb)
Age	15–29 years	29	36.3	161.79 ± 32.1
	30–44 years	27	33.8	219.32 ± 32.9
	45–59 years	18	22.5	239.56 ± 33.14
	>59 years	6	7.5	282.89 ± 15.89
Gender	Female	31	38.7	180.53 ± 51
	Male	49	61.3	225 ± 40.3

VSC = volatile sulfur compound, SD = standard deviation