Determining the Incidence of Adult Fractures: How Accurate Are Emergency Department Data?

Table 3

The PPV of ED fracture subtype diagnoses. The bold number illustrates the overall PPV of all referred ED fracture cases. The italic cells represent the subtype diagnoses with a statistically significant greater or lesser PPV than the average.

Fracture subtype	Total	Correct (𝑛)	Incorrect (𝑛)	PPV (%)	𝑃 value^**
Radius and ulna	2	2	0	100.0	0.400
Ulna diaphysis	22	21	1	95.5	0.021
Clavicle	283	261	22	92.2	<0.0001
Toe	111	102	9	91.9	<0.0001
Prox humerus	374	342	32	91.4	<0.0001
Humerus diaphysis	31	27	4	87.1	0.092
MC	715	614	101	85.9	<0.0001
Radius diaphysis	7	6	1	85.7	0.474
MT	418	358	60	85.6	<0.0001
Distal radius	1079	895	184	82.9	<0.0001
Finger	788	623	165	79.1	<0.0001
Ankle	474	364	110	76.8	0.124
Prox ulna	28	21	7	75.0	0.887
Patella	23	17	6	73.9	0.992
Overall				73.8
Spine	11	8	3	72.7	0.934
Distal tibia	17	12	5	70.6	0.762
Fibula	40	28	12	70.0	0.581
Scapula	32	20	12	62.5	0.144
Prox radius	342	208	134	60.8	<0.0001
Distal ulna	54	32	22	59.3	0.014
Calcaneus	27	14	13	51.9	0.009
Prox tibia	29	15	14	51.7	0.007
Distal femur	4	2	2	50.0	0.278
Pelvis	8	4	4	50.0	0.125
Prox femur	8	4	4	50.0	0.125
Talus	22	11	11	50.0	0.011
Tibia diaphysis	4	2	2	50.0	0.278
Distal humerus	30	12	18	40.0	<0.0001
Midfoot	45	18	27	40.0	<0.0001
Carpus	666	161	505	24.2	<0.0001
Prox radius and ulna	0	0	0	0.0	n/a

^**Chi-square tests.