Given a passage with a context and an answer, 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]: Context: To assessdoctor's knowledge on the relevance of the problem of sleep disorders, methods of their diagnosis and treatment.", 'The survey was conducted among90physicians of different the rapeuticspecialties of Kazan medical institutions.', 'The doctors believe that main causes of sleep disorders are stressors (20%), depression (13%), neurosis (13%), chronic diseases (13%), asthenia (10%), pain (10%). An analysis of treatment prescribed to patients with sleep disorders revealed large differences.
Answer: Physicians are not well informed about the problems of sleep disorders, have a small idea of the methods of sleepresearch and drugs for their treatment as well as of a sequence of operations that should be used to resolve this problem.
[A]: Do [ What do the doctors of different specialties know about sleep disorders and their treatment ]?

[Q]: Context: To compare the frequency of Pap test results in a prospective series of direct to vial ThinPrep tests to a cohort of conventionally prepared tests. To follow-up all test results for a minimum of 2 years and assess performance based on this outcome.', 'All women presenting for either routine screening or colposcopic examination in 2001 were enrolled in the ThinPrep cohort. A similar, population of conventionally prepared tests was extracted from the year 2000 laboratory data. Information on all concurrent and follow-up cervical specimens over the ensuing 2 years was retrieved.', 'The ThinPrep cohort comprised 2288 Pap tests and the conventional, 2211. The frequency of normal [within normal limits (WNL) and benign cellular changes (BCC)] results in the ThinPrep cohort was 6% lower and the frequency of abnormal [> or =atypical squamous cells of undetermined significance (ASCUS)] results was 6.8% higher. Respective ThinPrep and conventional cohort results were 1156 (51%) and 1291 (58%) WNL, 625 (27%) and 561 (25%) BCC, 101 (4%) and 65 (3%) ASCUS, 21 (1%) and 2 (0.1%) atypical glandular cells of undetermined significance, 301 (13%) and 224 (10%) low-grade squamous intraepithelial lesion (LSIL), and 74 (3%) and 40 (2%) high-grade SIL (HSIL) (P < 0.0001). Follow-up was available for nearly 80% of each cohort. LSIL or higher was confirmed in 57.5% (n = 266) of the abnormal ThinPrep and 60.9% (n = 190) of the abnormal conventional tests. The ThinPrep yield of confirmed tests however was almost 50% higher than the conventional test.
Answer: In this population, ThinPrep was superior to the conventional Pap test.
[A]: Does comparative study of the ThinPrep Pap test and conventional cytology result in a Canadian cohort?

[Q]: Context: Recent studies have reported the association of gamma-glutamyltransferase (GGT) or ferritin with metabolic disorders. However, there has been no large population-based study assessing the interrelationship of these two biomarkers and their association with insulin resistance.', "A population-based cross-sectional study was carried out in the Chinese Liangshan Yi ethnic group. 756 eligible subjects, aged 20 - 74 years, were included. Demographic characteristics, medical history, and lifestyle data were collected through questionnaires. An oral glucose tolerance test was performed. Laboratory tests, including GGT and ferritin measurements, were conducted. Spearman's rank-order correlation and multiple linear regression were used to calculate the correlation of GGT with ferritin and their relationship to the insulin resistance index determined by the homeostasis model assessment (HOMA-IR).", 'A significant correlation between serum GGT and ferritin levels was found (r = 0.393, p < 0.05). GGT was independently correlated with ferritin after adjustment for age, gender, place of residence, education, income, leisure-time physical activity, drinking, smoking, body mass index, systolic pressure, diastolic pressure, hepatitis B surface antigen, anti-hepatitis C virus, aspartate aminotransferase, alanine aminotransferase, total cholesterol, low density lipoprotein-cholesterol, triglyceride, high density lipoprotein-cholesterol, fasting plasma glucose, 2-hour postprandial plasma glucose, uric acid, and urinary albumin to creatinine ratio (p < 0.05). Positive correlations were established between HOMA-IR and GGT (standard = 0.252) or ferritin (standard = 0.181) after adjustment for multiple confounders (p < 0.05).
Answer: Insulin resistance is associated with elevated serum GGT and ferritin. A combined determination of GGT and ferritin might lead to better predictions in patients with insulin resistance.
[A]:
Are serum Gamma-Glutamyltransferase and Ferritin Related to Insulin Resistance : A Population-Based Study?