30 Early Signs of Autism Spectrum Disorder (ASD) in China
X. Zhang

31 Implementation of A European Protocol for Autism Prevalence
A. M. Boilson A. Staines A. Ramirez M. R. Sweeney

32 Inter-Pregnancy Intervals and Risk of Autism in a Population-Based Study
L. Allerton M. J. Maenner M. Durkin

33 Analysis of Two Polymorphisms On the Serotonin Transporter Gene and Their Interaction with Environmental Stressors During Pregnancy
P. Hecht M. Tilley K. L. Jones D. Q. Beversdorf

34 Prevalence and Demographic Characteristics of Children with ASD in A Venezuelan Population
J. A. Chacin E. Medrano Z. Gonzalez V. Toledo E. Solís A. Costagliola C. Montiel-Nava

35 Maternal Cholesterol and Autism
J. B. Roullet A. Tsai E. Tierney H. Gray H. Austin B. Wilmot R. D. Steiner

36 Late Prematurity and Birth History in Children with Autism
A. Darcy Mahoney B. Minter M. Higgins K. Burch

37 Characteristics of Autism Spectrum Disorder Surveillance Cases without a Community Diagnosis: Missouri Autism and Developmental Disabilities Monitoring Network, 2006-2008
R. Fitzgerald E. Molloy J. N. Constantino

38 Verbal and Pragmatic Performance in Children with EARLY Symptoms of Autism
A. Jokel E. Armstrong M. Aldridge J. Lougeay R. Stillman L. Gabis T. T. Bower

39 Using Questionnaires to Predict Serum Levels of Polybrominated Diphenyl Ether (PBDE) and Polyfluoroalkyl Compounds
X. Wu D. Bennett D. J. Tancredi R. J. Schmidt I. Hertz-Picciotto

40 The Early Life Exposures Assessment Tool (ELEAT) for Autism Spectrum Disorders
C. K. Walker D. J. Tancredi D. Bennett A. Halladay R. Butler R. J. Schmidt

41 Differences in Diagnosis and ASD Severity Between Latino and White Children
A. B. Ratto L. Turner-Brown J. S. Reznick

42 Effects of Autism Spectrum Disorder On Parental Employment: Evidence From the National Health Interview Survey
B. P. McCall E. Starr

43 Findings from an Autism Surveillance Program in Three Regions of Canada
H. Ouellette-Kuntz H. Coo M. Breitenbach P. Hennessey P. Jackman

44 Sleep Patterns and Quality Among Children with Autism and Their Caregivers in Oman: A Case Control Study
O. Al-Farsi Y. M. Al-Farsi M. I. Waly M. M. Al-Sharbati M. Al-Shafaee A. Ouhtit M. M. Al-Khaduri S. Al-Adawi

45 No Differences in Early Immunization Rates Among Children with Typical Development and Autism Spectrum Disorders
K. Angkustsiri D. D. Li R. Hansen

46 Environment, the Perinatal Epigenome, and Risk for Autism and Related Disorders
J. I. Feinberg M. A. Taub S. C. Brown R. Irizarry K. D. Hansen L. A. A. Croen I. Hertz-Picciotto C. J. Newschaffer A. P. Feinberg M. D. Fallin

47 Co-Existing Conditions in Children with ASD: Evidence From Two Large UK Databases
B. Koshy M. Maskey F. A. Warnell M. A. Johnson H. McConachie A. S. Le-Couteur J. Parr

48 Can We Confirm an Association Between Shorter Interpregnancy Intervals and Autism?
H. Coo H. Ouellette-Kuntz Y. M. Lam M. Brownell M. Flavin L. Roos

49 Socioeconomic Disparities in ASD Screening Outcomes Using the M-CHAT(-R)
M. Khowaja A. P. Hazzard D. L. Robins

Psychiatric Disorders in Parents and Siblings of Individuals Diagnosed with Autism Spectrum Disorders in a Danish Historic Birth Cohort: A Register-Based Follow-up Study (Withdrawn)
M. W. Abdallah E. L. Mortensen J. Grove D. M. Hougaard B. Nørgaard-Pedersen E. C. Bonefeld-Jørgensen T. M. Michel

51 Heavy Metals and Porphyrin Levels in Autism Spectrum Disorders
M. Macedoni-Luksic D. Gosar J. Orazem J. Kodric P. Lesnik Musek A. France Stiglic M. Zupancic A. Sesek Briski D. Neubauer J. Osredkar

52 Training Program in Autism to Primary Care Professionals in São Paulo, Brazil - PILOT Study
D. Bordini C. de Paula R. Lowenthal G. Araujo Filho A. A. Gadelha J. J. Mari

Population Attributable Fractions for Three Perinatal Risk Factors for Autism Spectrum Disorders (ASDs), 2002 and 2008 Autism and Developmental Disabilities Monitoring (ADDM) Network (Withdrawn)
L. A. Schieve L. Tian J. Baio K. Rankin D. Rosenberg C. E. Rice L. D. D. Wiggins M. J. Maenner M. Yeargin-Allsopp M. Durkin K. Van Naarden-Braun D. E. Schendel K. Phillips L. B. King R. S. Kirby M. Wingate O. Devine

54 Medical Conditions and Health Care Utilization Associated with ASD in Adulthood
O. Zerbo L. A. Croen M. L. Massolo

55 Epidemiology of Neglect and Maltreatment in Children with Autism Spectrum Disorders
L. B. King C. A. Cheely J. Charles W. Jenner J. S. Nicholas L. A. Carpenter

56 Obstetric Risk Factors and Autism Spectrum Disorders in Finland
P. Polo-Kantola K. M. Lampi S. Hinkka-Yli-Salomäki M. Gissler A. S. Brown A. Sourander

57 The Association Between Gestational Exposure to Nonsteroidal Anti-Inflammatory Drugs and Autism
T. Tseng M. L. Adams W. D. Rich D. Tillman I. Hertz-Picciotto

58 Elevated Maternal C-Reactive Protein and Autism in a National Birth Cohort
A. S. Brown A. Sourander S. Hinkka-Yli-Salomäki I. W. McKeague J. Sundvall H. M. Surcel

59 Blood Serotonin Levels in Autism: A Systematic Review and Meta-Analysis
S. Gabriele R. Sacco A. M. Persico

60 Prevalence of Autism Spectrum Disorders (ASD) Among Young Children, by Demographic Characteristics
G. C. Windham K. S. Smith M. Anderson N. J. Rosen L. A. Croen C. E. Rice

61 Analysis of the Ages and Stages Questionnaire 3rd Edition (ASQ-3) Compared to the Modified Checklist for Autism in Toddlers - Revised (M-CHAT-R): An Update
L. D. Haisley S. Hardy C. Manning M. Barton D. A. Fein

62 The Familial Factors and Child's Symptomatology Affecting the Age of Diagnosis of Autism Spectrum Disorder
R. A. Mishaal E. Ben Itzchak D. A. Zachor

63 Needs and Opportunities for ASD Awareness, Legislation, Intervention, Training and Research in Argentina
A. Rattazzi M. L. Massolo K. A. Gutson V. M. Ensenat C. Plebst S. H. Cukier M. Massolo D. Melfi N. Martinez V. L. Martorello P. Landolfi L. A. Croen

64 Early Symptoms of Autistic Disorders in Korean Children: Retrospective Findings for 1- and 2-Year-Old Children
Y. Lee E. Lee H. Seung

65 Maternal Exposure to Childhood Abuse Is Associated with Elevated Risk of Autism
A. L. Roberts K. Lyall J. Rich-Edwards A. Ascherio M. G. Weisskopf

66 Age of Autism Diagnosis in a Clinical Setting: Differences by Rural Vs. Urban Counties
C. Hall M. Lambha J. Hamel

67 Children with Past but Not Current Diagnosis of Autism Spectrum Disorder
S. J. Blumberg R. M. Avila L. J. Colpe B. Pringle M. D. Kogan

68 Assessing Autism in Mexico Through the Autism Behavior Checklist (ABC)
L. Albores-Gallo C. List Hilton K. Living Varela Orozco O. Roldán-Ceballos A. P. Maurer-Martínez

69 The Influence of Self-Esteem in Predicting Changes in Autism Spectrum Behaviors for Adolescents with ASD: The UCLA PEERS School-Based Curriculum
R. Bagrodia D. Janulaitis L. C. Tucci Y. Bolourian E. Laugeson

70 Effect of Social and Environmental Factors On the Prevelance of Autism in Qatar
F. Alshaban

71 The “Prima-Pietra” Project: A Web-Based Platform for Early Autism Risk Assessment
L. Ruta R. Siracusano G. Tortorella M. Boncoddo C. Colombi G. Crifaci L. Billeci G. Tartarisco M. Ferro A. Narzisi F. Muratori G. Pioggia

72 Preliminary Data for the CAST Test in Three Spanish Population-Based Birth Cohorts At 5 Years of Age, in the INMA (INfancia y Medio Ambiente [Environment and Childhood]) Project
A. Aranbarri J. Forns A. Andiarena J. Julvez C. L. Rodríguez-Bernal M. Rebagliato I. Hertz-Picciotto

73 Prevalence of the Autism Phenotype in Children Adopted After Early Neglect and Maltreatment
J. Green C. Kay K. Leadbitter

The Mother's Very Early Experience of Taking Care of a Child Later Diagnosed with Autism: A Follow-up Study in the Danish National Birth Cohort (Withdrawn)
S. Lemcke E. Parner M. Bjerrum P. H. Thomsen M. B. Lauritsen