Publications by authors named "Kei Nagaoka"
Background: Although the control of varicella outbreaks is an important health issue, cost could present a major barrier for vaccination. The aim of this study is to investigate the association of vaccine subsidies and caregivers' socioeconomic status with varicella vaccine coverage of their children in Greater Tokyo, Japan, before the period that varicella vaccination was included in routine immunization program.
Methods: Participants were recruited from two different cities.
Background: Neuropsychiatric side effects of oseltamivir occur occasionally, especially in infants and young patients, but nothing is known about possible contributory factors.
Case Presentation: We report a case of a 15-year-old Japanese female with influenza infection who developed abnormal psychiatric symptoms after administration of standard doses of oseltamivir. She had no history of neurological illness, had never previously taken oseltamivir, and had not developed psychiatric reactions during previous influenza infection.
Objective: We investigated the association between income inequality and social capital with measles-containing vaccine (MCV) coverage rates in Japan.
Methods: MCV coverage data for all 1750 municipalities were collected from statistics publicized by the Ministry of Health, Labour and Welfare of Japan in 2010. Prefectural Gini coefficients in 2009 (an indicator of income inequality) and social capital indicators (including voting rates, volunteer rates at the prefectural level, and move-in ratios at the municipal level) were linked to MCV coverage using a multilevel analysis adjusting for covariates (population, age distribution, average income, average number of household members).