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Table 2 Correlation of parameters based on oral malodor. Data are reported as median and lower and upper quartile values

From: Resting salivary flow independently associated with oral malodor

Parameters

OLT score < 3 (n = 58)

OLT score ≥ 3 (n = 61)

Age (y)

48.5 (40.3–61.5)

56.0 (39.0–65.0)

VSCs (ng/10 mL)

2.5 (1.1–4.5)**

7.3 (4.8–13.2)**

No. of teeth

28 (26–28)

28 (23–28)

PlI

0.4 (0.3–0.6)*

0.5 (0.4–0.6)*

TCS

1.0 (1.0–2.0)**

2.0 (1.0–2.0)**

Ave. PPD (mm)

3.0 (2.9–3.1)*

3.0 (3.0–3.4)*

BOP (%)

4.6 (0.8–8.5)**

7.7 (3.1–13.2)**

Presence of ≥5-mm PPD with BOP

11 (19.0 %)**

30 (49.2 %)**

Stimulated salivary flow (mL/5 min)

8.3 (5.0–11.4)

6.0 (5.0–10.0)

Resting salivary flow (mL/min)

0.15 (0.11–0.26)**

0.09 (0.04–0.19)**

Moisture of tongue

29.1 (26.9–31.2)

30.2 (28.5–31.1)

Moisture of buccal mucosa

29.4 (27.9–31.6)

30.3 (28.4–31.3)

  1. Presence of ≥5-mm PPD with BOP was analyzed by χ2 test
  2. The other parameters were analyzed by the Mann–Whitney U test
  3. * P <0.05, ** P <0.01
  4. (The P value of the number of teeth was 0.05)