Risk Factors for Recurrent Abdominal Pain in Children with Nonorganic Acute Abdominal Pain.

Purpose: The purpose of this study was to identify the risk factors for recurrent abdominal pain (RAP) in children who presented with nonorganic acute abdominal pain.

Methods: A retrospective, single study was conducted on 2-15-year-old children diagnosed with nonorganic acute abdominal pain at the pediatric outpatient department of Vajira Hospital, Nawamindradhiraj University, between January 2015 and December 2019. The potential risk factors were analyzed using univariate and multivariate analyses.

Factors associated with early age at menarche among Thai adolescents in Bangkok: A cross-sectional study.

Background: The age at menarche in the Thai population has not been determined since 1997. This study recruited adolescents in Bangkok Metropolis to determine the age at menarche and its associations with health and socioeconomic status.

Methods: This cross-sectional study used a two-step stratified sampling strategy to recruit 1,020 female students, aged 10-16 years, from schools in Dusit district, Bangkok, Thailand.

Age at menarche and performance intelligence quotients of adolescents in Bangkok, Thailand: a cross-sectional study.

Background: The presence of an association between age at the onset of puberty and intelligence quotient (IQ) in young adolescents remains controversial. The aim of this study was to explore the association between age at menarche and performance IQ scores of young female adolescents in Bangkok, Thailand.

Methods: A cross-sectional study was conducted among 537 students aged 11-15 years attending primary and secondary schools in the Dusit district of Bangkok, Thailand.

Association between allergic sensitization and attention deficit hyperactivity disorder (ADHD).

Background: The increase in prevalence and burden of allergic diseases, i.e., eczema, asthma, and rhinitis, has been matched by parallel trends in a worldwide increase in attention deficit hyperactivity disorder (ADHD) diagnoses.

The ratio of 2nd and 4th digit length in autistic children.

Objective: To compare 2D:4D ratios of autistic to non-autistic children as a risk factor of autism.

Material And Method: A hospital based case-control study was conducted from March 2007 to July 2008. Demographic data and general risk factors of autism had been collected using questionnaires from case and age matched control subjects aged 18 months to 15 years.