BACKGROUND Self-perceived uselessness is associated with poor health and high mortality among older adults in China. However, it is unclear which demographic, psychosocial, behavioral and health factors are associated with self-perceived uselessness. METHODS Data came from four waves (2005, 2008, 2011 and 2014) of the largest nationwide longitudinal survey of the population aged 65 and older ...

AIM Self-perceived health is considered a suitable health indicator, based on a single item asking individuals to rate their health. It has been recommended as a reliable factor to assess the population health. Several socio-demographic and lifestyle determinants of self-perceived health status have been documented in different population. The aim of our study was to assess the socio-demographi...

Researchers can rely either on retrospectively reported or on prospectively measured health changes to identify and quantify recent changes in respondents' health status. The two methods typically do not provide the same answers. We compare the validity of prospective versus retrospective measures of health changes by investigating their predictive power for subsequent mortality. Data from a co...

OBJECTIVES Recently more attention has been focused on the impact of physical activity on modification of self-perceived heath status in adults. The objective of the study was to evaluate the level of occupational and non-occupational physical activities and their correlation with self-perceived heath status among economically productive individuals. MATERIALS AND METHODS Physical activity of...

BACKGROUND Although frailty is often conceptualized in terms of deficits, the level of frailty can be perceived as a complex interplay between deficits and resources. OBJECTIVE We studied whether resources such as educational level, financial situation, and living-alone status moderate the negative effects of deficits on two potentially adverse consequences of frailty: self-perceived health a...

background cigarette smoking is a common problem among teenagers. the aim of this study was to determine the prevalence of cigarette smoking among teen boys in marivan city, based on health belief model. materials and methods a cluster randomized sample of 470 male students with16.2±2.5   from 6 secondary schools of marivan city- iran, completed a self-report and questionnaire consisting of hea...