Reference |
Statistical Values/Author Comments |
Result of Statistical Analysis |
Payton A, 2001 |
there was no evidence of preferential transmission of any marker allele for the polymorphism examined in this study |
Non-significant
|
Thakur G. A., 2012 |
SNP rs3025343 mapped to this gene showed no significant association with ADHD in this study. |
Non-significant
|
Hawi, Z., 2012 |
This gene did not show significant association with ADHD. |
Non-significant
|
Wang G. X., 2012 |
SNP rs5320 mapped to this gene showed significant association with ADHD in this study. |
Significant
|
Brookes K, 2006 |
UNPHASED TDT P-value=0.0739, global P-value=0.8, WHAP TDT P_sum P-value=0.687, no SNP with nominal P-value<0.05 located in this gene |
Non-significant
|
Nyman ES, 2007 |
Association for an SNP in the DBH intron 12 was detected. |
Significant
|
Guan L, 2009 |
haplotype association analysis: Nominal P-value=0.041, Empirical P-value=0.509 for ADHD-I; Nominal P-value=0.035, Empirical P-value=0.419 for ADHD-C. 5 SNPs in this gene achieved nominal significance for ADHD-I/ADHD-C, and haplotype association test also achieved nominal significance for ADHD-I/ADHD-C. |
Significant
|
Hess C, 2009 |
No association was observed when comparing the DBH C-1021T full genotype distributions of adult ADHD patients and controls; howerer, a significant association was found between the rare TT genotype and ADHD. |
Significant
|
Gizer IR, 2009 |
The present study does not support a relation between ADHD and this gene. |
Non-significant
|
Bhaduri N, 2010 |
haplotype 12R-TaqIG P-value=0.04, OR=2.01, X2=4.1; haplotype 12R-1021C-444G P-value=0.05, OR=1.93, X2=3.91; haplotype 12R-1021C-TaqIG P-value=0.04, OR=2.1, X2=4.41; haplotype 12R-1021C-444G-TaqIG P-value=0.04, OR=2.13, X2=4.22; revealed significant preferential transmission of haplotypes |
Significant
|
Das M, 2011 |
minimum UNPHASED P-value=0.0009, X2=10.9 revealed lower occurrence of T-G haplotypes in the ADHD cases; minimum ETDT P-value=0.22 showed no significant over transmission of any haplotypes |
Significant
|
Carpentier, P. J., 2012 |
The DBH risk genotype was associated with ADHD diagnosis, with the association strongest in the pure ADHD group. |
Significant
|
Roman T, 2002 |
In the present study, an association between the DBH TaqI A2 allele and ADHD was detected in a sample of Brazilian ADHD families |
Significant
|
Wigg K, 2002 |
TRANSMIT for haplotype transmission: smallest P=0.66. No significant evidence for biased transmission of the haplotypes and alleles were found. |
Non-significant
|
Kirley A, 2002 |
Significant preferential transmission of allele at DBH (allele 2, Taq I polymorphism) |
Significant
|
Hawi Z, 2003 |
1 marker within this gene showed significant association with ADHD; 2-marker haplotype_1.2 (DBH exon2, DBH intron5) P-value=0.045, X2=4.0143; global X2=14, 3 df, P-value=0.0029 which showed preferential transmission |
Significant
|
Smith KM, 2003 |
DBH TaqI A polymorphism is significantly associated with ADHD |
Significant
|
Inkster B, 2004 |
the results did not provide support for a role of the DBH TaqI marker in the persistent ADHD samples |
Non-significant
|
Bhaduri N, 2005 |
lack of significant association between transmission of 2 polymorphisms and ADHD |
Non-significant
|
Bhaduri N, 2006 (b) |
a haplotype comprising of allele 1 of all three polymorphisms (-1021C->T, *444g/a, TaqI RFLP) showed a minor trend towards preferential transmission from parents to probands (X2=1.65, P=0.19) |
Non-significant
|