Variables   Mental Retardation Autism Downs syndrome Cerebral palsy Others P value
Age 10-Jan 30 3 3 0 6 >0.05
20-Nov 87 21 21 15 12
21-30 42 0 6 0 3
31-40 9 0 0 0 0
Gender Male 114 12 27 9 9 >0.05
Female 54 12 3 6 12
Family history Present 9 3 3 0 3 >0.05
Absent 159 21 27 15 18
IQ score Mild (50-70) 75 2 21 9 3 >0.05
Moderate(35-49) 78 22 6 6 15
Severe (20-34) 15 0 3 0 3
Dentition Permanent 120 15 23 5 10 >0.05
Deciduous 9 0 0 0 0
Mixed 39 9 7 10 11
Table 1: Demographic characterstics of study population.
Goto home»