This is the first study in the Asia-Pacific region to examine the criterion validity of the self-reported International Physical Activity Questionnaire–Short form (IPAQ-SF) using accelerometers, in terms of achieving the World Health Organization’s (WHO) recommended physical activity guidelines for health benefits. Vietnamese adults aged 40–65 years ( n = 240) wore an ActiGraph GT3X+ accelerometer for at least 5 days and completed the Vietnamese version of the IPAQ-SF. Correlations between IPAQ-SF and accelerometer-measured physical activity intensities varied from .087 to .232. Mean difference in moderate–vigorous physical activity was 0.699 min/day (95% limits: [−107, 109]). Agreement on the classification of achieving the WHO’s physical activity guidelines was 69.16%. The IPAQ-SF identified 71.86% of adults who met the guidelines, whereas 56.09% of those not meeting the guidelines were classified correctly. The IPAQ-SF was found to have acceptable criterion validity and is a useful instrument to classify Vietnamese adults as achieving or not achieving the WHO’s physical activity guidelines for health benefits.
Background: Hearing loss in children is a common entity worldwide. This study examined the prevalence of hearing loss among preschool children in Hanoi, Vietnam.Methods: A cross sectional was conducted among pre-schoolers aged 2-5 years in Hanoi, Vietnam to determine the prevalence of hearing loss according to the method recommended by the Joint Committee on Infant Hearing (JCIH): a two-step Automated Oto-Acoustic Emissions (AOAE) program, completed by an Auditory Brainstem Response (ABR) for the positive diagnosis of hearing impairment.Results: In total, there were 7,191 preschoolers and kindergarten screened. Three hundred and thirty-seven (4.7%) of children screened failed and were referred for further testing. The percentage of children with true hearing loss was 4.4% confirmed by ABR test. Majority of the hearing loss children was conductive hearing loss (70.4%). Mild hearing loss (21–≤40 dB) accounted for almost half of the children with hearing loss.Conclusions: This study provides the first estimates of audiometrically measured hearing loss prevalence among preschool children in Hanoi, Vietnam. The study found that hearing loss is common among pre-primary school children in the country. Routine hearing screening of school-age children should be included in annual school health programs in Vietnam.
Background: Risk factors of hearing loss among preschool children is still unknown in Vietnam. This study was to assess the risk factors of hearing loss among preschool children in Hanoi, Vietnam.Methods: A case-control study was conducted in Hanoi, Vietnam. A total of 314 hearing loss cases (aged 2-5 years) and 628 controls, frequency matched by age and sex, were selected. Information about prenatal, perinatal, and postnatal factors the children were obtained from direct interview using a questionnaire. Unconditional logistic regression analyses were performed to assess the association between different factors and hearing loss condition of children.Results: The results found five risk factors of hearing loss among preschool children, including maternal rubella (adjusted Odds ratio [OR]=11.72, 95%CI: 2.90-47.33), prolonged oxygen use (adjusted OR (95%CI: 2.72-70.82), severe jaundice (adjusted OR=13.47, 95%CI=5.09-35.59), meningitis (adjusted OR=26.44, 95%CI=5.65-123.59), and chronic ear infections (adjusted OR=14.03, 95%CI: 9.85-19.97).Conclusions: Different risk factors of hearing loss among preschool children in Hanoi found, including maternal rubella, prolonged oxygen use, severe jaundice, meningitis, and chronic ear infections. Studies regarding the prevention of hearing loss among children are urgently needed.
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