2 articles
Surgery exposes professionals to significant physical and psychological risks, including intense exertion, prolonged static postures, and repetitive gestures, often leading to musculoskeletal pain. International studies report prevalence rates above 90%, linked to long procedures and poor ergonomics, alongside exposure to biological and chemical hazards, radiation, toxic smoke, and chronic stress. In the Republic of Moldova, occupational health in the medical sector is underexplored, with no tools tailored to surgeons. This study aims to develop and validate the first nationally standardized questionnaire to assess these risks and support public health policies.
The study used a sequential mixed-methods design: a qualitative phase to identify domains and indicators, followed by a quantitative phase for psychometric testing. Four domains were defined: working conditions, occupational factors, general health, and psycho-emotional state. The questionnaire was refined from 70 to 47 items after expert review and validation, with internal consistency (Cronbach’s α) and content validity (I-CVI, modified Kappa) assessed. It was pre-tested on 52 surgeons, and data were analyzed using SPSS 27 (p<0.05).
Content validation revealed S-CVI/Ave values ranging from 0.934 to 1.00 and S-CVI/UA values from 0.738 to 1.00, with all domains exceeding the accepted threshold for relevance and clarity, except for one domain, which fell slightly below the recommended level for unanimous agreement. I-CVI values ranged from 0.857 to 1.00 (relevance) and 0.847 to 1.00 (clarity), while κ* indices were all rated as "excellent". Based on expert feedback, 24 questions were revised and 15 were removed. Overall internal consistency was very good (α = 0.808), with section values ranging from 0.769 to 0.864, the highest being for "Psycho-emotional state" (α = 0.864). The pre-test sample comprised 52 surgeons, mostly male (57.7%), with a mean age of 44.92 years, predominantly from urban areas (92.3%). Respondents generally found the questions clear but noted some lengthy formulations, repetitiveness, and sensitive items. These observations contributed to optimizing the final version of the instrument.
The final questionnaire meets the initial theoretical dimensions and shows strong psychometric properties, with high validity and internal consistency. The tool is comparable to established instruments and suitable for assessing surgeons’ health and occupational risks, with potential for wider use.
In the context of increasing global consumption of bottled water, assessing its chemical composition and impact on public health becomes essential. Although perceived as a safe alternative, bottled water exhibits variability in its chemical composition, and advanced filtration methods can remove essential minerals. Consumers opt for bottled water due to its taste and convenience, yet awareness of associated risks remains limited. This study proposes the development and validation of a questionnaire to evaluate public perceptions of bottled water quality and its health impact, providing a valuable tool for public education and regulatory policies.
The questionnaire was developed to analyze consumer attitudes and behaviors regarding bottled water. Structured into four sections (socio-demographic data, consumption habits, perceptions of quality, and health impact), it underwent multiple validation stages. A panel of experts assessed the relevance of the questions, and a pilot study was conducted with a sample of 32 adults (aged 24-62) to evaluate validity and internal consistency using the Cronbach's alpha coefficient. Final validation was based on the feedback collected and statistical analysis performed using SPSS Statistics 27.
S-CVI/Ave and S-CVI/UA are indicators of questionnaire content validity, calculated based on item validity scores and the percentage of agreement among evaluators. The S-CVI/Ave and S-CVI/UA values exceeded the minimum standard of 0.80, while the I-CVI index ranged between 0.83 and 1.00, demonstrating excellent item validity. Following respondent feedback, 18 questions were revised, and 6 were removed, resulting in a second version with 61 items. The validity sample comprised 84.4% women and 15.6% men, aged 24 to 62 years. Most respondents considered the questions clear and easy to understand, although suggestions were made to improve clarity and avoid redundancy. Internal consistency was confirmed through the Cronbach's alpha coefficient, which was acceptable for most domains, except one, where the coefficient was below 0.70 but was retained due to the validity of the questions.
The questionnaire for assessing bottled water consumption was successfully validated, demonstrating content validity and internal consistency. Face validity ensured the clarity of the questions.