Given a passage, construct a question on the basis of the information present in the passage. Construct the question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) it answer uses text phrases from the passage. Avoid creating questions that (i) can't be answered correctly without actually understanding the passage and (ii) uses the same words or phrases given in the passage.

[Q]: Deep wound infections pose an increasing problem in cardiac surgery patients. Prospective infection monitoring is thus a means of identifying possible risk factors.', 'Within a period of 5 months, a total of 376 adult patients, 260 men and 116 women, with a mean age of 62.6 years (range 18-88), underwent coronary bypass grafting (n=281) or other cardiac surgery procedures (n=95). Nasal cultures were taken preoperatively from every patient, as well as cultures of the wound during surgery and when dressings were changed thereafter. In addition, nasal cultures were taken from all the medical and nursing staff. To differentiate endogenous and exogenous infection pathways, DNA fingerprint analysis was performed.', "A total of 38 patients (10.1%) developed a wound infection, in 14 patients this happened to be a deep wound infection, in 24 patients a superficial one. Five sternal wound infections were associated with mediastinitis (1.3%). The occurrence of a wound infection overall resulted in prolonged hospitalization (29.4+/-24 vs. 11.9+/-6.9 days, P=0.001), but not in increased hospital mortality (4.4% vs. 3.9%). Obesity, diabetes mellitus and nasal carriage of Staphylococcus aureus proved to be independent risk factors with an odds ratio of 2.07, 2.26 and 2.28, respectively. In all but one of the sternal colonizations with S. aureus, DNA fingerprint analysis demonstrated an identical pattern of S. aureus from the patient's nose and sternum, indicating an endogenous infection pathway.
[A]: Is the endogenous pathway a major route for deep sternal wound infection?


[Q]: Are low vitamin D levels linked with semen quality and sex steroids in infertile men?
[A]: Are vitamin D deficiency and low ionized calcium linked with semen quality and sex steroid levels in infertile men?


[Q]: To explore the prevalence of work disability (WD) and to identify bio-psychological factors that predicts future WD in rheumatoid arthritis (RA) over a 7-year period.', 'Patients were selected from the Oslo RA register. The prevalence of WD was studied cross-sectionally among respondents <67 years (n = 526) in a postal survey. Mean age (SD) was 51.1 (11.9) years, mean disease duration 11.3 (9.4) years, and 49% of patients were RF-positive. The patients studied for predictive factors for WD were respondents in postal surveys both at baseline and at the 7-year follow-up, in work at baseline and still in working age (<67 years) at follow-up (n = 159). Mean age at baseline (SD) was 44.5 (9.7) years, mean disease duration 8.4 (6.6) years, mean years of formal education 12.7 (3.1) years, 48% were RF-positive. Assessments included socio-demographic variables and health status measures (MHAQ, AIMS2, SF-36, fatigue and pain on VAS 0-100 mm, self efficacy, and RAI as a measure for helplessness).', 'Among the 526 respondents at baseline <67 years, the prevalence of WD was 40%. A high level of education was a predictor of reduced risk of work disability [odds ratio (OR) = 0.4, 95% confidence interval (CI) 0.1; 0.9], while female gender (OR 3.0, 95% CI 1.1; 8.0), physical disability (MHAQ-score) (OR = 3.9, 95% CI 1.2; 12.5) and helplessness over median RAI-score (OR = 3.0, 95% CI 1.4; 6.7) were independent predictors of increased risk for new work disability over 7 years.
[A]:
Is work disability in rheumatoid arthritis predicted by physical and psychological health status : a 7-year study from the Oslo RA register?