Regular and temporary occupants' perceptions of satisfaction in tertiary education buildings.

There is little knowledge about occupants' satisfaction when diverse end users coexist in the same building. This paper presents the results of a survey administered to 1013 occupants in 43 academic buildings in Spain, with the aim to reveal the perception of the indoor environmental quality and workplace ergonomics of both lecturers and students. The results revealed that light adequacy, cleanliness and acoustics in classrooms are perceived differently by lecturers and students. Results also revealed no gender differences in satisfaction with all aspects of comfort in classrooms. However, in offices, air quality, thermal sensation in winter and adequacy of space were perceived differently by male and female. The findings will be of interest for tertiary building maintenance, design teams and ergonomists to enhance comfort in both groups of end users. Practitioner Summary: There are no reported studies on how groups of occupants (regular and temporary) perceive comfort in relevant aspects such as acoustics, lighting, space adequacy, cleanliness, and ergonomics. The survey results with 1013 occupants revealed that regular users tend to be less satisfied than temporary users in rooms where they cohabit. Abbreviations: POE: post-occupancy evaluation; HVAC: heating, ventilation and air conditioning; AQ: air quality; IEQ: indoor environmental quality; TS: thermal sensation.

Tuberculosis recurrences and predictive factors in a vulnerable population in Catalonia.

BACKGROUND: Patients with a history of tuberculosis (TB) have a high probability of recurrence because long-term cure is not always maintained in successfully treated patients. The aim of this study was to identify the probability of TB recurrence and its predictive factors in a cohort of socially vulnerable patients who completed treatment in the TB referral center in Catalonia, which acts as the center for patients with social and health problems. METHODS: This retrospective open cohort study included all patients diagnosed with TB who were admitted and successfully treated in Serveis Clínics between 2000 and 2016 and who remained disease-free for a minimum of 1 year after treatment completion. We calculated the incidence density of TB recurrences per person-years of follow-up. We also estimated the cumulative incidence of TB recurrence at 1, 2, 5, and 10 years of follow-up. Bivariate analysis was conducted using Kaplan-Meier curves. Multivariate analysis was conducted using Cox regression. Hazard ratios (HR) were calculated with their 95% confidence intervals (95%CI). RESULTS: There were 839 patients and 24 recurrences (2.9%), representing 0.49 per 100 person-years. The probability of a recurrence was 0.63% at 1 year of follow-up, 1.35% at 2 years, and 3.69% at 5 years. The multivariate analysis showed that the predictive factors of recurrence were age older than 34 years (aHR = 3.90; CI = 1.06-14.34 at age 35-45 years and aHR = 3.88; CI = 1.02-14.80 at age >45 years) and resistance to at least one anti-TB drug (aHR = 2.91; CI = 1.11-7.65). CONCLUSIONS: Attention should be paid to socially vulnerable persons older than 34 years with a previous episode of resistant TB. Surveillance resources should be directed toward adequately treated patients who nevertheless have a high risk of recurrence.

Mitigating construction safety risks using prevention through design.

INTRODUCTION: Research and practice have demonstrated that decisions made prior to work at construction sites can influence construction worker safety. However, it has also been argued that most architects and design engineers possess neither the knowledge of construction safety nor the knowledge of construction processes necessary to effectively perform Construction Hazards Prevention through Design (CHPtD). METHOD: This paper introduces a quantitative methodology that supports designers by providing a way to evaluate the safety-related performance of residential construction designs using a risk analysis-based approach. The methodology compares the overall safety risk level of various construction designs and ranks the significance of the various safety risks of each of these designs. The methodology also compares the absolute importance of a particular safety risk in various construction designs. RESULTS: Because the methodology identifies the relevance of each safety risk at a particular site prior to the construction stage, significant risks are highlighted in advance. Thus, a range of measures for mitigating safety risks can then be implemented during on-site construction. IMPACT ON INDUSTRY: The methodology is specially worthwhile for designers, who can compare construction techniques and systems during the design phase and determine the corresponding level of safety risk without their creative talents being restricted. By using this methodology, construction companies can improve their on-site safety performance.