Background/Objectives: Bone maturation and development are crucial for growth and development, especially in children and adolescents; however, some qualitative methods, such as Greulich & Pyle, do not provide accurate data. Our aim is to verify whether skeletal age (SA) can predict and correlate with bone mineral content (BMC), bone mineral density (BMD), and body composition (BC). Methods: A cross-sectional study was conducted on 115 male adolescents (ages 12.1–15.8 years). Skeletal age was assessed using the Tanner–Whitehouse 3 (TW3) method, while BMC, BMD, and BC were measured using full-body DXA. Anthropometric data, including height and body mass, were also recorded. Statistical analysis included descriptive methods and bivariate correlation coefficients. Results: SA was significantly correlated with stature (r = 0.598, p = 0.001) and body mass (r = 0.517, p = 0.001), showing a stronger association than chronological age (CA) for these variables. Body composition variables, including lean mass (LM) (r = 0.521, p = 0.001) and fat tissue (FT) (r = 0.522, p = 0.001), also showed a stronger correlation with SA than CA. However, associations between SA and bone parameters were weaker: BMC (r = 0.103, p = 0.275) and BMD (r = 0.161, p = 0.086) did not reach statistical significance. When stratified by SA/CA tertiles, individuals in the highest tertile exhibited slightly greater BMC (1439 ± 108.32 g) and BMD (1.028 ± 0.127 g/cm²), though without a significant effect. These findings suggest a dynamic but complex relationship between skeletal age and bone development. Conclusions: SA demonstrates a stronger association with anthropometric and body composition variables than CA, highlighting its potential as a predictor of growth used in conjunction with LM and FM. However, its relationship with BMD and BMC remains inconclusive, warranting further longitudinal research, considering limitations regarding nutritional intake.

Assessment instruments for functioning in general and quality of life in particular often involve discrete scales with three, four, or five values, or Visual Analogue Scales (VAS) with a range 0–100. VAS scales often need to be downsized and discretized using intervals or clusters. Cutoff points for these intervals/clusters need to be carefully selected and justified. Our objective was to underline the importance of providing clear interpretations of many-valuedness appearing in quality-of-life (QoL) instruments, and to present a methodology for the provision of such clearness. Doing so, we view QoL scales as originating within the World Health Organization (WHO).

Introduction: Portugal has been asserting itself as a destination country for migrants of different origins (Instituto Nacional de Estatística, 2012), having therefore developed several policies focused on their integration. The migrant population is considered a vulnerable group in the health area for socioeconomic, educational and legal reasons. This vulnerability translates into limitations to health promotion and disease prevention services and goods and increasing difficulties with regard to their access, demand and use (Ramos, 2009). Goal: To know the scientific evidence regarding the accessibility, demand and use of health services by the children of migrants. Methodology: The research for this integrative review was carried out in the B-On, RCAAP and CIÊNCIA – IUL databases. Through the descriptors "Accessibility", "Health" and "Migrants", and the inclusion criteria: research articles and articles in scientific journals published between 2009 and 2019, and after exclusion by title and abstract, 7 articles. Results: When compared to the non-migrant population, the migrant population has less accessibility to health services, despite being offered the means to enjoy primary health care (Estrela, 2009; Padilla, et al, 2013; Matos, et al., 2015). In addition, they are a group that makes little use of health services, making use mainly of the Emergency Department (Estrela, 2009; Ramos, 2009; Topa et al., 2013; Jordão et al., 2018). Conclusion: Differences in accessibility, demand and use of health services in the migrant population are explained by the fear of being extradited, by the scarcity of health and legal information. It is up to the health professional to train these groups of people, as well as acquire skills that allow them to provide adequate care to the child born to migrants. It is important to mention that these conclusions may not represent the current reality, since the information consulted is scarce and the studies developed in this area are few.

The studies about the functioning of the elderly play an important role on what the present knowledge of the demography in the world is. The conceptual aspects of functioning according to WHO and operated by the international classification of functioning (ICF), have been insufficiently addressed concerning its adequate applicability in most countries, hindering the contributions of its operation. The ICF operationalizes a new paradigm of the concepts of functionality/disability, but also in relation to the concepts of health/illness, quality of life and well-being; where social skills, personal skills and physical capacity are emphasized, in a multidirectional and dynamic way, where all its components interact equitably with each other. The authors reflect on the contributions that the ICF can make to the organizational, legislative, and structural needs in terms of aging.