Table 4. Evaluation of the standardized index test, including subtests, of exposed patients and the control group, adjusted for socioeconomic status as well as for socioeconomic status, age, and sex.

	Controls mean [95% CI]	Patients mean [95% CI]	Difference [90% CI]	Difference adjusted according to socioeconomic status [90% CI]	Difference adjusted according to socioeconomic status, ag,e and sex [90% CI]
Index test	113.0 [110.0; 116.1]	108.2 [107.0; 109.4]	4.9 [2.2; 7.6]	3.6 [0.9; 6.2]	2.9 [0.2; 5.6]
IT subtest: sequential	109.6 [106.3; 112.9]	105.1 [103.7; 106.4]	4.5 [1.5; 7.5]	3.6 [0.5; 6.7]	2.4 [−0.8; 5.5]
IT subtest: simultaneous	110.4 [107.3; 113.6]	107.5 [106.3; 108.7]	3.0 [0.1; 5.8]	1.9 [−0.8; 4.6]	2.6 [−0.1; 5.3]
IT subtest: learning	110.1 [107; 113.2]	106.5 [105.2; 107.7]	3.7 [0.9; 6.5]	2.7 [0; 5.5]	2.4 [−0.4; 5.3]
IT subtest: planing	107.9 [104.6; 111.3]	104.5 [103.2; 105.9]	3.4 [0.4; 6.4]	2.7 [−0.4; 5.8]	1.2 [−2; 4.4]
IT subtest: knowledge	114.1 [110.8; 117.5]	109.6 [108.3; 110.9]	4.5 [1.5; 7.5]	2.9 [0.1; 5.7]	3.1 [0.2; 5.9]

IT, Index test; 90% CI, 90 % confidence interval