Table 2 Skin surface temperature of each knee joint measured at baseline and after AA on the left pinna

Left knee joint skin surface temperature (℃)

Right knee joint skin surface temperature (℃)

p-value1)

Baseline

33.07±1.07

33.12±1.09

0.141

After AA

33.22±1.14

33.31±1.16

0.247

p-value2)

0.362

0.524

1) Independent t-test for comparisons between the two knee joints. 2) Paired t-test for comparisons between baseline and after AA. AA, auricular acupressure.