2002, Number 4
<< Back Next >>
salud publica mex 2002; 44 (4)
Characteristics of specific reading disability in children from a neuropsychological clinic in Mexico City
Poblano A, Borja S, Elías Y, García-Pedroza F, Arias ML
Language: English
References: 33
Page: 323-327
PDF size: 39.63 Kb.
ABSTRACT
Objective. This report describes the main clinical features associated with specific reading disability (RD) in a group of 778 school-age children studied in a europsychological Clinic in Mexico City.
Material and Methods. The study was performed retrospectively, using data abstracted from clinical records of subjects seen in 1995-1996. Children were mainly from low and middle economic strata and aged between 6 to 12 years. The following data were collected: age, gender, diagnosis, school grade, food intake, maternal complications during pregnancy, perinatal and postnatal neurological risk factors, and neurological signs and handedness.
Results. Subjects with RD had a mean age of 102.9 months, were predominantly male (male female ratio, 2:1). Among the study group, 49.1% of the children were diagnosed with RD of a visuo-sensory-motor type, and 75.1% were from early school years (1
st to 3
rd grades); 27.6% showed evidence of malnutrition. A previous history of language disorders (49.2%), and a high frequency of perinatal risk factors and neurological soft signs were also found.
Conclusions. This study shows that variables such as gender, food intake, and genetic and neurological risk factors, were associated with reading disabilities in school children.
REFERENCES
Dalby JT. An ultimate view of reading ability. Inter J Neurosci 1986;30: 227-230.
Duane DD. Neurobiological correlates of learning disorders. J Am Acad Child Adolesc Psychiatr 1989;28:314-318.
Shawitz SE. Dyslexia. N Engl J Med 1998;338:307-312.
Cravioto J, Cravioto P. Some long-term psychobiologic consequences of malnutrition. Ann Nestle 1990;48:93-102.
Cravioto J, Arrieta R. Nutrición, desarrollo mental, conducta y aprendizaje. México, D.F.: Instituto Nacional de Ciencia y Tecnología-DIF, 1985.
Asociación Psiquiátrica Americana. DSM-III. Manual Diagnóstico y Estadístico de los Trastornos Mentales. Barcelona: Masson, 1987.
Asociación Psiquiátrica Americana. DSM-IV. Breviario. Criterios Diagnósticos. Barcelona: Masson, 1995.
Azcoaga J, Derman B, Iglesias PA. Alteraciones del aprendizaje escolar. Diagnóstico, fisiopatología y tratamiento. Barcelona: Paidós, 1985.
Bakker DJ. Neuropsychological classification and treatment of dyslexia. J Learn Dis 1992;25:102-109.
Gersons-Wolfensberger DCM, Ruijssenaars WAJJM. Definition and treatment of dyslexia: A report by the Committee on Dyslexia of the Health Council of the Netherlands. J Learn Dis 1997;30:209-213.
Nieto M. El niño disléxico. México, D.F.: La Prensa Médica Mexicana, 1980.
Ezcurra M. Identificación de los patrones de distorsión en la lectoortografíaen la lengua española como elemento diagnóstico de dislexia de evolución. Adaptación transcultural de la investigación de la doctora Elena Boder. Memorias del II Congreso Hispano-Americano de Dificultades en el Aprendizaje de la Lectura y Escritura. México, D.F.: Secretaría de Educación Pública, 1974:760-795.
Hernández-Avila M, Romieu I, Parra S, Hernández-Avila J, Madrigal H, Willet W. Validity and reproducibility of a food frequency questionnaire to assess dietary intake of women living in Mexico City. Salud Publica Mex 1998;40:133-140.
Touween BL. Examen del niño con disfunción encefálica mínima. Buenos Aires: Panamericana, 1986.
Oldfield RC. The assessment and analysis of handedness: The Edinburgh Inventory. Neuropsychology 1971;9:97-113.
Rutter M, Yule W, Graham P, Whitemore K. Research report: Isle of Wigth Studies 1964-1974. Psychol Med 1976;6:313-332.
Shaywitz SE, Shaywitz BA, Fletcher JM, Escobar MD. Prevalence of reading disability in boys and girls. Results of the Connecticut Longitudinal Study. JAMA 1990;264:998-1002.
Campbell FA, Ramey CT. Effects of early intervention on intellectual and academic achievement: A follow-up study of children from low-income families. Child Dev 1994;65:684-698.
Kenworthy OT, Bess FH, Stahlman MT, Lindstrom DP. Hearing, speech, and language outcome in infants with extreme immaturity. Am J Otol 1987;8:419-425.
Robertson CMT, Finer NN, Grace MGA. School performance of survivors of neonatal encephalopathy associated with birth asphyxia at term. J Pediatr 1989;114:753-760.
Vohr BR, García-Coll CT. Neurodevelopmental and school performance of very low-birth-weight infants: A seven-year longitudinal study. Pediatrics 1985;76:345-350.
Hack M, Breslau N, Weissman B, Aram D, Klein N, Borawsky E. Effect of very low birth weight and subnormal head size on cognitive abilities at school age. N Engl J Med 1991;325:231-237.
Poblano A, Valadez-Tepec T, Arias ML, García-Pedroza F. Phonological and visuo-spatial working memory alterations in dyslexic children. Arch Med Res 2000;31:493-496.
Tomblin JB, Smith E, Zhang X. Epidemiology of specific language impairments: Prenatal and perinatal risk factors. J Commun Disord 1997; 30:325-344.
Gillis-Light J, DeFries JC. Comorbidity of reading and mathematics disabilities: Genetic and environmental etiologies. J Learn Dis 1995;28:96-106.
DeFries JC, Fulkner DW, LaBuda MC. Evidence for a genetic aetiology in reading disability of twins. Nature 1987;329:537-539.
Cardon LR, Smith SD, Fulkner DW, Kimberling WJ, Pennington BF, de Fries JC. Quantitative trait locus for reading disability of twins. Nature 1987;329:537-539.
Smith SD, Pennington BF, Kimberling WJ, Lubs HA. A genetic analysis of specific reading disability. En: Smith SD, ed. Genetic aspects of speech and language disorders. Nueva York: Academic Press, 1983:169-178.
Ruff RM, Young D, Gautille T, Marshall LF, Barth J, Jane JA et al. Verbal learning deficits following severe head injury: Heterogeneity in recovery over 1 year. J Neurosurg 1991;75:S50-S58.
Hannon DW. Breath-holding spells: Waiting to inhale, waiting for systole, or waiting for iron therapy. J Pediatr 1997;130:510-512.
Ardila A. Correlation between scholastic performance and soft neurological signs in children. Int Pediatr 1996;11:284-287.
Geschwind N, Behan P. Left-handedness: Association with immune disease, migraine, and developmental learning disorder. Proc Natl Acad Sci 1982;79:5097-5100.
Annet M, Manning M. Reading and a balanced polymorphism for laterality and ability. J Child Psychol Psychiatr 1990;31:511-529.