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Table 1 Demographic characteristics of TMD patients who presented before and during the COVID-19 pandemic

From: The influence of the COVID-19 pandemic, sex, and age on temporomandibular disorders subtypes in East Asian patients: a retrospective observational study

Variables

All patients

Before COVID

During COVID

P-value

Number of TMD patients

    

n (%)

838 (100)

367 (100)

471 (100)

 

Sex

    

Female, n (%)

626 (74.7)

276 (75.2)

350 (74.3)

0.768

Male, n (%)

212 (25.3)

91 (24.8)

121 (25.7)

Female;male ratio

3.0

3.0

2.9

 

Age

    

Mean (SD)

32.10 (15.52)

30.86 (14.77)

33.07 (16.02)

0.082^

Median (IQR)

27.00 (18.00)

27.00 (15.00)

28.00 (19.00)

Age groups, n (%)

    

Adolescents/young adults

673 (80.3)

304 (82.8)

369 (78.3)

0.105

Middle-aged/older adults

165 (19.7)

63 (17.2)

102 (21.7)

TMD duration (months)

    

Mean (SD)

16.80 (37.12)

17.48 (39.89)

16.27 (34.85)

0.520^

Median (IQR)

3.00 (11.50)

3.00 (11.50)

3.00 (11.33)

 
  1. TMD = temporomandibular disorders; COVID = corona virus disease 2019; SD = standard deviation; IQR = interquartile range
  2. Results of ^Mann-Whitney U and *Chi-square tests