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Table 3 Correlation between bruxism and perceived stress by personal characteristics and gender, Kendall’s Tau method

From: Perceived stress and bruxism in university students

Parameter

PSS-10 vs. BRUX1 

M

PSS-10 vs. BRUX2 

M

PSS-10 vs. BRUX1

F

PSS-10 vs. BRUX2

F

Lives with own family

(M = 106; F = 138)

0.17

NS

0.01

NS

0.06

NS

0.15

NS

Lives out of family

(M = 13; F = 20)

0.976

Conc. 0.009**

Dep. 0.001**

0.21

NS

−0.01

NS

−0.19

NS

Regular exercise

(M = 75; F = 69)

0.21

Conc. 0.01*

Dep. 0.03*

0.09

NS

0.08

NS

−0.15

NS

No regular exercise

(M = 42; F = 79)

0.25

Conc. 0.01*

Dep. 0.02*

−0.24

Disc. 0.02*

Dep. 0.05*

0.02

NS

0.04

NS

Smokes cigarettes

(M = 45; F = 39)

−0.09

NS

0.01

NS

−0.05

NS

−0.10

NS

Non smoker

(M = 133; F = 118)

0.917

Conc. 0004**

Dep. 0009**

−0.03

NS

0.09

NS

−0.02

NS

Consumed alcoholics

(M = 84; F = 60)

0.29

Conc. 0,01*

Dep. 0.02*

0.01

NS

0.16

Conc. 0.04*

Dep. 0.08 NS

−0.06

NS

No alcoholics

(M = 52; F = 97)

0.19

Conc. 0.03

Dep. 0.06 NS

−0.1

NS

0,15

Conc. 0.04*

Dep. 0.09 NS

−0.02

NS

Experienced drugs

(M = 36; F = 26)

0.17

Conc. 0.03*

Dep. 0.06 NS

−0.03

NS

0.09

NS

0.03

NS

No drugs

(M = 81; F = 131)

0.18

Conc. 0.02*

Dep. 0.04*

−0.02

NS

0.04

NS

−0.05

NS

  1. Tau-b value is reported, P is reported if significant
  2. Conc concordance; Disc discordance; Dep dependence; NS not significant
  3. *P < 0.05 is statistically significant; **P < 0.001 is statistically highly significant