. 2017 Feb 3;12(2):e0171204. doi: 10.1371/journal.pone.0171204

Table 2. Olfactory and gustatory variables in patients included in the study according to the diagnosis.

VARIABLES	LOW WEIGHT	NORMAL WEIGHT	OVERWEIGHT	OBESITY	MO
OLFACTORY FUNCTIONS
Sniffin sticks: Odor threshold	6.0±1.4^a,b	7.03±2.4^a	5.5±1.1^b	5.4±1.6^b	5.6±1.9^b
Sniffin sticks: Odor discrimination	13.0±1.4^a	12.9±1.8^a	12.8±1.9^a	11.5±1. 9^b	11.9±2.3^a,b
Sniffin sticks: Odor identification	12.6±1.7^a	13.0±1.8^a	12.8±1.6^a	11.1±2.2^b	11.9±2.0^a,b
GUSTATORY FUNCTIONS
Taste strips sweet	3.6±0.72^a,b	3.7±0.63^a	3.2±0.45^a,b	3.3±0.77^a,b	3.0±1.1^b
Taste strips acid	2.0±0.99^b	2.6±0.93^a	1.8±0.71^b	1.9±1.1^b	1.6±0.93^b
Taste strips salty	2.9±0.99^a	2.9±0.91^a	2.3±1.2^a,b	1.7±1.1^b	2.4±1.3^a
Taste strips bitter	2.4±1.2^b	3.1±0.93^a	2.3±1.6^b	2.3±1.1^b	2.2±1.3^b

The results are given as the mean ± SD. Different letters indicate significant differences between the different groups (p<0.05). MO: morbid obesity. Sniffin' Sticks odor threshold: score range from 0 to 16; Sniffin' Sticks odor discrimination: score range from 0 to 16; Sniffin' Sticks odor identification: score range from 0 to 16. The higher score the better odor performance in each of the subtest. Each correct answer was granted as 1 point (maximum 4 points for each taste score and 16 points for the whole test score). Taste strips sweet: score range from 0 to4; Taste strips acid: score range from 0 to 4; Taste strips salty: score range from 0 to 4; Taste strips bitter: score range from 0 to 4. The higher score the better gustatory function in each of the subtest.