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. 2006 Apr 12;16(1):73–82. doi: 10.1007/s00586-006-0079-y

Table 4.

Variability in POTSI and DAPI measurement

Intraobserver Interobserver Interassay
POTSI DAPI POTSI DAPI POTSI DAPI
Mean 3.95 0.27 3.981 0.38 4.64 0.34
Standard deviation 4.15 0.2 4.17 0.3 4.08 0.31
Variation coefficient 4.15/27.5 (15.09%) 0.2/3.9 (5.13%) 4.17/27.5 (15.16%) 0.3/3.9 (7.69%) 4.08/27.5 (14.84%) 0.31/3.9 (7.95%)