Mild mental retardation

mental retardation: ['Subnormal intellectual functioning which originates during the developmental period. This has multiple potential etiologies, including genetic defects and perinatal insults. Intelligence quotient (IQ) scores are commonly used to determine whether an individual is mentally retarded. IQ scores between 70 and 79 are in the borderline mentally retarded range. Scores below 67 are in the retarded range. (Joynt, Clinical Neurology, 1992, Ch55, p28)']

Endpoint definition

Name F5_MILDRET
Long name Mild mental retardation
Hospital Discharge registry ICD-10: F70, ICD-8: 311
Cause of Death registry ICD-10: F70, ICD-8: 311
Level in the ICD-hierarchy 3
First defined in version DF2
Latin name Retardatio mentalis levis

Summary Statistics

Key figures

All Female Male
Number of individuals 486 236 250
Unadjusted prevalence (%) 0.22 0.19 0.27
Mean age at first event (years) 29.58 29.63 29.53
Case fatality at 5-years (%) 2.26 1.69 2.80

Longitudinal metrics

All Female Male
Median nb. of events per indiv. 3.0 3.0 2.0
Recurrence at 6 months (%) 46.09 51.27 41.20

Survival analyses between endpoints

Plot

before Mild mental retardation
after Mild mental retardation

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Drugs most likely to be purchased after Mild mental retardation