Table 4 Identification of smells (Sniffin’ Sticks) and tastes (taste strips) according to care need (nursing grade).

From: Care need and dry mouth as risk indicators for impaired taste and smell

 

Study participants (N = 190)

Without care need (n = 149)

With care need (n = 41)

p value*

Number of patients, n (%)

Gender, female

108 (56.8)

78 (52.3)

30 (73.2)

0.021

Periodontitis (CPITN)

46 (59)

17 (42.5)

29 (76.3)

0.003

Hyposalivation

 Unstimulated

56 (31.6)

48 (32.4)

8 (27.6)

0.668

 Stimulated

63 (36.6)

53 (36.1)

10 (40)

0.823

Correctly recognized smell

 Orange

156 (82.1)

141 (94.6)

15 (36.6)

< 0.001

 Leather

137 (72.1)

119 (79.9)

18 (43.9)

< 0.001

 Cinnamon

128 (67.4)

115 (77.2)

13 (31.7)

< 0.001

 Peppermint

155 (81.6)

140 (94)

15 (36.6)

< 0.001

 Banana

135 (71.1)

120 (80.5)

15 (36.6)

< 0.001

 Lemon

91 (47.9)

78 (52.3)

13 (31.7)

0.022

 Licorice

136 (71.6)

125 (83.9)

11 (26.8)

< 0.001

 Coffee

149 (78.4)

135 (90.6)

14 (34.1)

< 0.001

 Clove

159 (83.7)

142 (95.3)

17 (41.5)

< 0.001

 Pineapple

109 (57.4)

99 (66.4)

10 (24.4)

< 0.001

 Rose

146 (76.8)

132 (88.6)

14 (34.1)

< 0.001

 Fish

155 (81.6)

136 (91.3)

19 (46.3)

< 0.001

Correctly recognized taste

 Salty

150 (78.9)

126 (84.6)

24 (58.5)

0.001

 Sweet

164 (86.3)

139 (93.3)

25 (61)

< 0.001

 Bitter

155 (81.6)

130 (87.2)

25 (61)

< 0.001

 Sour

139 (73.2)

122 (81.9)

17 (41.5)

< 0.001

Mean (SD) or median (IQR)

Age, years

66.7 (15.2)

62.5 (13.8)

81.9 (9.7)

< 0.001

67.5 (57–78)

63 (55–72)

84 (77–87)

Total API, n

3.4 (3.5)

2.3 (2.5)

7.4 (3.7)

< 0.001

2 (1–5)

2 (0–4)

7 (5–10)

Chronic diseases, n

2.6 (2.6)

1.7 (1.6)

6 (2.7)

< 0.001

2 (1–4)

1 (1–2)

6 (4–8)

BMI

25.4 (4.6)

25.3 (4.6)

25.6 (4.7)

0.511

25 (22–28)

25 (22–28)

25 (23–28)

DMFT

18.7 (6.4)

17.3 (6.4)

22.2 (4.9)

< 0.001

20 (15–23)

18 (13.5–22)

23 (19–28)

Root caries index

0.3 (0.7)

0.1 (0.2)

1 (1.2)

< 0.001

0 (0–0.2)

0 (0–0)

0.6 (0.2–1.5)

XVAS

3.8 (3.3)

3.9 (3.4)

3.5 (3)

0.490

4 (0–7)

4 (0–7)

3.5 (0–5)

Salivary flow rate, ml/min

Unstimulated

0.4 (0.4)

0.4 (0.3)

0.4 (0.5)

0.789

0.3 (0.2–0.5)

0.3 (0.2–0.6)

0.3 (0.1–0.5)

 Stimulated

1.2 (0.9)

1.2 (0.9)

1 (0.8)

0.516

1 (0.4–1.6)

1.1 (0.4–1.7)

0.8 (0.5–1.6)

Correctly identified odors, n

8.8 (3.3)

10 (2.1)

4.4 (3.2)

< 0.001

10 (8–11)

11 (9–11)

4 (2–6)

Correctly identified tastes, n

3.2 (1.1)

3.5 (0.8)

2.2 (1.5)

< 0.001

4 (3–4)

4 (3–4)

3 (1–3)

Correctly identified odors plus tastes, n

11.9 (4.1)

13.4 (2.4)

6.5 (4.3)

< 0.001

13 (10–15)

14 (13–15)

7 (3–10)

  1. API active pharmaceutical ingredients, BMI body mass index, CPITN community periodontal index of treatment needs, DMFT decayed missed filled teeth, IQR interquartile range, SD standard deviation, XVAS xerostomic visual analog scale.
  2. *p < 0.05 indicates statistical significance (bold numbers), evaluated using Fisher’s Exact Test or Mann–Whitney U Test.