The Study Of Temperament Characteristic In Infant With A History Of Hyperbilirubinemia

Objective1.To investigate the temperament characteristic of infant with a history of hyperbilirubinemia.2.To explore the temperament characteristic of infant with a history hyperbilirubinemia who had abnormal brainstem auditory evoked potentials .Subjects1.patient group:58 hyperbilirubinemia infants were recruited in this study.They were diagnosed as hyperbilirubinemia in our hospital according to the criteria recommended by The third edition of useful study of neonatal, in which 36 were male,and 22 were female,4-12 month of age,mean age was 8±1.7months,37-42 weeks of fetal age,2500-4000g,have no asphyxia ,The concentration of serum bilirubin was over 205μmol/L, Those who suffered from other central nervous system diseases, bilirubin encephalopathy,central nervous system infection, asphyxia, hypoxic ischemic encephalopathy ,hereditary disease,metabolic disease were excluded.Subjects were divided into two groups according to whether have normal brainstem auditory evoked potentials or abnormal brainstem auditory evoked potentials .2. control group:58 age,sex-matched infants (34 boys and 24 girls, mean age was 8±1.3months) without a history of hyperbilirubinemia were selected randomly as control group.Those who were with central nervous system diseases and chronic diseases were excluded.MethodsData collection: Information was collected from all subjects by using (Infant Temperament Questionnaire)RITQ and general information questionnaire(maded by ourselves).The patient group were gathered concentration of serum bilirubin and BAEP during hospitalization.Data arrangement:All subjects's temperament characteristic and the patient group's concentration of serum bilirubin and BAEP results were analyzed. Statistical analysis: All data were analyzed with statistical software SPSS14.0.The size of testα=0.05.Results1.The comparison of the constituent ratio of general information There was no significant difference between patient group and control group in the constituent ratio of parental education degree,parental vocation,family income, and infant feeding patterns(P>0.05).2.The comparison of constituent ratio of temperament types and the scores of temperament dimensions between infant with a history of hyperbilirubinemia and normal infant.There was no significant diffenence in constituent ratio in temperament types between hyperbilirubinemia infant and normal infant.(P > 0.05).In hyperbilirubinemia infant,the scores of activity level , persistence ,distractibility(3.45±0.69,3.64±0.67,3.28±0.59) were higher than those in normal infant (3.05±0.57,3.28±0.73,2.85±0.47)(P<0.01,<0.01,<0.05). The scores of threshold of responsiveness in hyperbilirubinemia infant(3.79±0.57) were lower than in normal infant(4.08±0.80)(P <0.01).3.The comparison of constituent ratio of temperament types and the scores of temperament dimensions between hyperbilirubinemia infant with abnormal BAEP and those with normal BAEP.There was no significant diffenence in constituent ratio in temperament types between hyperbilirubinemia infant with abnormal BAEP and those with normal BAEP.In hyperbilirubinemia infant with abnormal BAEP the scores of activity level, persistence,distractibility(3.50±0.68,3.72±0.64,3.37±0.47)were higher than those with normal BAEP (3.23±0.57,3.43±0.61,2.99±0.59)(P< 0.05 , < 0.05, < 0.05). The scores of threshold of responsiveness in hyperbilirubinemia infant with abnormal BAEP(3.70±0.52) were lower than in those with normal BAEP(3.94±0.57)(P<0.05). There was no significant diffenence in the scores of temperament dimensions between hyperbilirubinemia infant with normal BAEP and normal infant.Conclusions1.The constituent ratio of temperament types in infant with a history of hyperbilirubinemia is the same as normal infant.2. Hyperbilirubinemia infant with abnormal BAEP are prone to be with high activity level, less persistence ,more distraction and insensitive responsiveness.