Table 2.

Comparability between the field grader and three photograph graders for the signs trachomatous inflammation—follicular (TF) and trachomatous inflammation—intense (TI) in 948 eyes from 948 subjects. Figures are kappa scores, counting ungradable photographs as disagreements (in bold type) and excluding ungradable photographs (in normal type)^*

	Photograph grader
	A	b	C	Mean
TF	0.49 (0.45–0.54)	0.34 (0.29–0.39)	0.49 (0.43–0.54)	0.44
	0.79 (0.72–0.86)	0.34 (0.29–0.39)	0.58 (0.52–0.65)	0.57
TI	0.41 (0.36–0.45)	0.58 (0.52–0.65)	0.53 (0.48–0.59)	0.51
	0.58 (0.52–0.64)	0.59 (0.52–0.65)	0.62 (0.56–0.69)	0.60

^*Values in parentheses are 95% confidence intervals.