Table 3.

The letters sorted according to the percentage of correct decisions made about the patient's sex.

Correct decision interval (%)	Letter label	Number of letters (%)	Patient's sex†
0 – 5.0
5.1 – 10.0	32*	1 (1.2)	2
10.1 – 15.0	59	1 (1.2)	2
15.1 – 20.0
20.1 – 25.0
25.1 – 30.0	4, 18, 25, 66	4 (4.9)	2, 2, 2, 2
30.1 – 35.0	44, 79, 36, 37,	4 (4.9)	1, 1, 1, 2
35.1 – 40.0	68	1 (1.2)	1
40.1 – 45.0	58, 55, 57	3 (3.7)	2, 1, 1
45.1 – 50.0	33, 81, 6, 23, 75, 2, 22, 74*	8 (9.9)	2, 2, 1, 1, 2, 1, 2, 1
50.1 – 55.0	45*, 50, 53, 54, 30, 39	6 (7.4)	2, 1, 2, 1, 2, 1
55.1 – 60.0	34, 13, 19	3 (3.7)	1, 2, 2
60.1 – 65.0	15, 29, 38, 48, 63, 5, 20, 46, 43, 62, 65, 73, 80	13 (16.0)	2, 2, 1, 2, 2, 2, 1, 2, 1, 1, 2, 2, 1
65.1 – 70.0	10, 14, 72, 56, 60, 69, 1, 11, 17, 35	10 (12.3)	2, 2, 1, 1, 1, 2, 1, 2, 1, 1
70.1 – 75.0	76, 7, 21, 52, 77, 31	6 (7.4)	1, 1, 1, 2, 1, 1
75.1 – 80.0	64, 78, 3, 9, 26, 41, 51	7 (8.6)	2, 1, 2, 1, 1, 2, 1
80.1 – 85.0	61, 71, 8, 40, 49	5 (6.2)	2, 2, 2, 1, 2
85.1 – 90.0	27, 12, 47, 67, 28, 42, 70	7 (8.6)	1, 1, 1, 1, 2, 1, 1
90.1 – 95.0	16	1 (1.2)	1
95.1 – 100	24*	1 (1.2)	2
Total		81 (100)

^†1 = man, 2 = woman

*Letters further examined in the qualitative analysis.