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. 2007 Mar 22;92(11):959–962. doi: 10.1136/adc.2006.105916

Table 4 GCSE point score in five key subjects according to the type of school attended.

School type Pupil group Number of GCSE points
0* 1–14* 15–24* >24* Mean (SD)
Comprehensive Index (385) 38 (9.9) 181 (47.0) 116 (30.1) 50 (13.0) 13.47 (9.1)
Control (232) 10 (4.3) 71 (30.6) 106 (45.7) 45 (19.4) 17.45 (8.3)
Grammar Index (14) 1 (7.1) 1 (7.1) 4 (28.7) 8 (57.1) 23.71 (10.5)
Control (24) 0 2 (8.4) 7 (29.9) 15 (61.7) 26.83 (7.3)
Independent Index (25) 0 1 (4.0) 9 (36.0) 15 (60.0) 27.44 (8.5)
Control (32) 0 2 (6.2) 10 (31.4) 20 (62.4) 27.59 (8.7)
Special Index (36) 28 (77.8) 7 (19.4) 1 (2.8) 0
Control (0)

Differences in means: not significant.

*Results are shown as No (%) of pupils.