Demographics of patients

Demographic Value
Sex
Male 20 (33)
Female 40 (67)
Race
Chinese 47 (78)
Malay 7 (12)
Indian 3 (5)
Other 3 (5)
Age (yr) 62.9 ± 10.1
Duration of illness at first consultation (yr) 5.5 ± 5.3

Values are presented as number (%) for categorical data or mean ± standard deviation for continuous data.

Korean J Pain 2021;34:66~71 https://doi.org/10.3344/kjp.2021.34.1.66
© Korean J Pain