We exploit the discontinuity in age when children start kindergarten generated by state eligibility laws to examine whether relative age is a significant determinant of ADHD diagnosis and treatment. Using a regression discontinuity model and exact dates of birth, we find that children born just after the cutoff, who are relatively old-for-grade, have a significantly lower incidence of ADHD diag...

BACKGROUND Diffusion-weighted imaging (DWI) is a form of magnetic resonance imaging (MRI) based on measuring the random Brownian motion of water molecules within the biological tissues and is particularly useful in tumor characterization. OBJECTIVES The purpose of this study was to evaluate the diagnostic value of DW MRI and the apparent diffusion coefficient (ADC) for preoperative grading of...

The aim of this study was to assess the diagnostic value of acoustic radiation force impulse (ARFI) imaging for differentiating superficial lymph nodes.Virtual touch tissue imaging (VTI) grade and shear wave velocity (SWV) were analyzed and compared in 97 patients (65 women, 32 men; mean age, 49 y; range, 23-72 y) with 97 lymph nodes [23 chronic nonspecific reactive lymph nodes (CLNs), 38 metas...

BACKGROUND Knowledge of cervical human papillomavirus (HPV) status might influence a cytotechnician's assessment of cellular abnormalities. The authors compared original cytotechnicians' Papanicolaou (Pap) readings for which HPV status was concealed with Pap rereads for which HPV status was revealed separately for 3 screening populations. METHODS Previously collected cervical Pap smears and c...

We analyzed the performance of Amplicor for detecting carcinogenic human papillomavirus (HPV) infections and cervical precancer in women with an atypical squamous cells of undetermined significance (ASCUS) Pap and compared the results with Hybrid Capture 2 (hc2) in the ASCUS and low-grade squamous intraepithelial lesion (LSIL) triage study (ALTS). Baseline specimens collected from women referre...

BACKGROUND Increasing studies have suggested that albuminuria might be an important risk factor for peripheral artery disease (PAD). However, studies focusing on the association between low-grade albuminuria and PAD are limited. It would be of great interest to elucidate the association between low-grade albuminuria and PAD in diabetic subjects. METHODS A cross-sectional study was conducted i...

Preoperative evaluation of the curability of gastric and cardia cancer is important to avoid risks of unnecessary surgery. Our previous study has reported several clinical parameters associated with incurable gastric surgery. In this study, we aimed to evaluate the correlation between CA125 and the curability of gastric and cardia cancer.A total of 297 cases of gastric and cardia cancer were an...

Purpose: With the recent discovery that -methlyacly-coenzyme A racemase (AMACR) is over expressed in a majority of prostate cancer (CaP) specimens we developed a novel polymerase chain reaction (PCR) based approach that would predict the presence of CaP from prostatic secretions. Materials and Methods: A total of 21 patients were enlisted in this study, including 10 with CaP, 2 with high grade ...