Table 3.

Intra-rater reliability of peripheral neurological tests, reported as Cohen’s kappa (К), coefficient of variance (COV) or Spearman’s (r)

Reference	Four-site monofilament	128 Hz tuning fork	Vibration perception threshold	Reflexes
Bax et al24		(Right): rater A: κ=0.52, rater B: κ=0.66 (95% CI 0.45 to 0.73) (Left): rater A: κ=0.54, rater B: κ=0.56 (95% CI 0.41 to 0.69)	Biothesiometer hallux (right): rater A: κ=0.51, rater B: κ=0.57 (95% CI 0.40 to 0.68) Hallux (left): rater A: κ=0.64, rater B: κ=0.51 (95% CI 0.44 to 0.71)	Rater A: κ=0.55 Rater B: κ 0.55 (95% CI 0.41 to 0.69)
Bril et al34			Vibratron II COV (%)=31–34 Neurothesiometer COV (%)=6–8
Domínguez-Muñoz et al25			Vibratron II ICC=0.958 (95% CI 0.94 to 0.98)
Gentile et al36			Biothesiometer hallux: COV (%)=16.5 ± 5.8 (4–21) Malleous: COV (%)=18.6 ± 9.5 (4.4–28)
Guy et al37			Biothesiometer r=0.91 (95% CI) p<0.01
Lanting et al26	κ=0.34 (95% CI 0.06 to 0.63) p<0.01 to κ=0.67 (95% CI 0.45 to 0.89) p<0.01	κ=0.50 (95% CI 17 to 0.83) p<0.02 to κ=0.57 (95% CI 0.24 to 0.9) p<0.01	Neurothesiometer κ=0.52 (95% CI 0.21 to 0.82) p<0.01 to κ=0.78 (95% CI 0.58 to 0.98) p<0.02
Louraki et al (2013)			Biothesiometer hallux (left): κ=0.69 (±0.05) Hallux (right): κ=0.64 (±0.05) Tibia (left): κ=0.70 Tibia (right): κ=0.64
Young et al (1992)			Biothesiometer: COV (%): 8.6 Neurothesiometer: COV (%): 8.1

ICC, intraclass correlation coefficient.