Table 1.
Characteristics of papers on the association between DTNBP1 and cognition.
| Author, year | Country | N (SCZ) |
N (healthy) |
Sex (% male) |
Race | Age (Mean) |
Cognitive measure | Primary phenotype |
|---|---|---|---|---|---|---|---|---|
| Burdick 2006(12) | USA | 213 | 126 | 38.94% | 100% Caucasian |
51.18 | WRAT-3 Reading test WAIS-R Digit span CPT-I/P CVLT-abridged COWAT Trails making test-A,B |
Spearman's g factor |
| Stefanis 2007(14) | Greece | 0 | 2243 | 100% | 100% Caucasian |
20.69 | Raven Progressive Matrix | IQ |
| Zinkstok 2007(16) | Netherlands | 76 | 31 | 74.2% | 71.0% Caucasian |
21.5 | WAIS-III | IQ |
| Peters, 2008(51) | Australia | 336 | 172 | 59.3% | 75% Caucasian |
Not reported |
The National Adult Reading Test |
IQ |
| Luciano 2009(17) | UK (Scotland) |
0 | 1054 | 50% | 100% Caucasian |
69.6 | WAIS-III subtests WMS-III Digit span |
Spearman's g factor |
| Australia | 0 | 1806 | 49.1% | 98% Caucasian |
16.91 | Multidimensional Aptitude Battery |
IQ | |
| UK (England) |
0 | 745 | 30.1% | 100% Caucasian |
63.1 | Alice Heim 4 Intelligence Test Mill Hill Vocabulary A & B Random Letters Test Cattell Culture Fair Test |
Spearman's g factor |
|
| Kircher 2009(18) | Germany | 0 | 518 | 51.4% | 88.5% European ancestry |
24.75 | MWT-B | IQ |
| Hashimoto 2009(19, 26) |
Japan | 70 | 165 | 32.7% | 100% Asian |
37.28 | WAIS-R | IQ |
| Need 2009(20) | USA | 0 | 701 | 39% | 81% Caucasian |
31.2 | CANTAB | Spearman's g factor |
Note: WRAT-3 = Wide Range Achievement Test-Third Edition; WAIS-R = Wechsler Adult Intelligence Test-Revised; CPT-I/P = Continuous Performance Test-Identical Pairs Version; CVLT = California Verbal Learning Test; COWAT = Controlled Oral Word Association Test; WAIS-III = Wechsler Adult Intelligence Test-Third Edition; WMS-III = Wechsler Memory Scale-Third Edition; MWT-B = Mehrfachwahl-Wortschatz-Intelligenztest-Version B; CANTAB = Cambridge Neuropsychological Test Automated Battery.