Validity and interexaminer reliability of a new method to quantify skin neurofibromas of neurofibromatosis 1 using paper frames

Table 1 Descriptive statistics and interexaminer reliability of number of neurofibromas using the paper frame’s method

Descriptive statistics	Examiner A	Examiner B	Differences (A-B)
n	92	92
Mean	67.09	66.17	0.93
Standard Deviation	76.79	72.67	7.47
Minimum	0	0	- 13
First Quartile	9.33	9.49	- 0.92
Median	38.49	38.99	0
Third Quartile	94.24	91.91	0
Maximum	348.66	330.66	42
Interexaminers
ICC¹			0.995 (0.992 – 0.997)
P-value (Paired t test)			0.236

¹= Intraclass correlation coefficient (95% confidence interval) – two-way mixed ANOVA model, using the average of two measures (examiner A and examiner B).

ISSN: 1750-1172