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. Author manuscript; available in PMC: 2010 Sep 7.

Published in final edited form as: Clin Exp Rheumatol. 2010 Jun 10;28(2 Suppl 58):S28–S36.

Table II.

Intra- and inter-rater reliability^* of delta FTP and FTP^† in 39 SSc patients in Phase 1

	Delta FTP^† ICC	FTP^† ICC
Intra-rater agreement
Left hand, rater 1	0.99 (0.98, 0.99)	0.99 (0.98, 0.99)
Left hand, rater 2	0.99 (0.99, 0.99)	0.99 (0.99, 0.99)
Right hand, rater 1	0.99 (0.98, 0.99)	0.98 (0.97, 0.99)
Right hand, rater 2	0.99 (0.99, 0.99)	0.99 (0.99, 0.99)
Inter-rater agreement
Left hand, 1^st measurement	0.96 (0.91, 0.98)	0.92 (0.83, 0.96)
Left hand, 2^nd measurement	0.97 (0.93, 0.98)	0.95 (0.88, 0.97)
Right hand, 1^st measurement	0.97 (0.94, 0.98)	0.94 (0.89, 0.97)
Right hand, 2^nd measurement	0.97 (0.95, 0.99)	0.94 (0.90, 0.97)

^*

Intra-rater and inter-rater reliability assessed by intraclass correlation coefficient (ICC) and reported as ICC (95% confidence interval).

^†

FTP: finger-to-palm distance.