Table 1.

Performance statistics of the auto-coding program in classifying claims as STF, MSD or other (OTH).

	Na	Text Only				Text+Injury Code
		Nb	Sensitivity	Specificity	PPV	Nb	Sensitivity	Specificity	PPV
All Claims	800		88.4%c				89.9%c
NOC	6	0	0.0%	100.0%	-	0	0.0%	100.0%	-
MSD	144	147	85.4%	96.3%	83.7%	146	90.3%	97.6%	89.0%
STF	190	205	90.0%	94.4%	83.4%	215	90.5%	93.0%	80.0%
OTH	460	448	89.8%	89.7%	92.2%	439	90.7%	93.5%	95.0%

^aActual number of claims in each causation category.

^bNumber of claims predicted by auto-coding program in each category.

^cOverall percent of claims coded correctly by the auto-coding program.