In this task, you are given a passage which has a question and the context. You have to generate an answer to the question based on the information present in the context.

[Q]: Context: This study examines the prevalence and correlates of self-reported premenstrual symptoms among a large, population-based sample of reproductive age, active-duty women.', 'Data were obtained from a combined dataset of two large-scale mail surveys designed to represent the total force. Subjects included in the present study were 6026 active-duty women of all branches of military service stratified by service, paygrade group, race/ethnicity, and location. A multivariate approach is used to evaluate the interrelationships among psychosocial and lifestyle correlates of premenstrual symptoms or pain after controlling for demographic differences in women who reported premenstrual symptoms or pain during the past 3 months (cases) and those who did not (controls).', 'Premenstrual symptoms were reported by nearly 2 of every 3 reproductive age women. Women reporting premenstrual symptoms were more likely to report other symptoms of menstrual dysfunction, two or more current medical conditions, migraines, and healthcare provider visits in the past year. After controlling for the protective effects of taking Depo-Provera (Upjohn, Kalamazoo, MI) and ever being pregnant, younger age, trying to lose weight, heavier drinking, poorer self-perceived health, and overall job stress were the most significant predictors of premenstrual symptoms. The greatest risk factor was a high level of job stress, with an almost 3-fold increase in risk relative to those without symptoms.\Question: Does psychosocial and lifestyle correlate of premenstrual symptoms among military women?
[A]: Work stress may mediate the relationship among depression and premenstrual symptoms. Further research is needed to elucidate the biological interrelationships among work stress, hormonal function, and premenstrual symptomatology.


[Q]: Context: To evaluate the superiority of transcutaneous oxygen pressure (TcPO2) before, during and after peripheral transluminal angioplasty (PTA) in comparison with ankle brachial index (ABI) in patients with diabetes.', '40 consecutive patients with diabetes treated by PTA where included. This study shows results before, during and after PTA and their progression for 8 weeks.', 'The TcPO2 increased from 28.11\u2009±\u20098.1 to 48.03\u2009±\u20098.4\u2009mmHg, 8 weeks after PTA (p\u2009<\u20090.001). The ABI increased from 0.48\u2009±\u20090.38 to 0.77\u2009±\u20090.39 after PTA (p\u2009<\u20090.001). After PTA, the stenosis of the vessel decreased from 58.33\u2009±\u200920.07% to 21.87\u2009±\u200913.57% (p\u2009<\u20090.001). TcPO2 was determined in all the patients, but ABI could not be determined in all patients. Furthermore, we determined patients with "false negatives" with an improvement in ABI and "false positives" in 12.5% of patients. Additionally, in this study, we monitored TcPO2 while performing PTA, revealing variations in each phase of the radiological procedure.\Question: Does transcutaneous oxygen tension measurements following peripheral transluminal angioplasty procedure have more specificity and sensitivity than ankle brachial index?
[A]: The increase in TcPO2 measurements following PTA procedure has more specificity and sensitivity than does ABI. The use of TcPO2 may represent a more accurate alternative than traditional methods (ABI) used in assessing PTA results. The TcPO2 also allows the radiologist to assess changes in tissue oxygenation during PTA, allowing changes to the procedure and subsequent treatment.


[Q]: Context: The aim of this study was to evaluate whether percutaneous transhepatic biliary drainage (PTBD) increases the incidence of seeding metastasis and shortens postoperative survival compared with endoscopic biliary drainage (EBD).', 'A total of 376 patients with distal cholangiocarcinoma who underwent pancreatoduodenectomy following either PTBD (n\xa0=\xa0189) or EBD (n\xa0=\xa0187) at 30 hospitals between 2001 and 2010 were retrospectively reviewed. Seeding metastasis was defined as peritoneal/pleural dissemination and PTBD sinus tract recurrence. Univariate and multivariate analyses followed by propensity score matching analysis were performed to adjust the data for the baseline characteristics between the two groups.', 'The overall survival of the PTBD group was significantly shorter than that of the EBD group (34.2\xa0% vs 48.8\xa0% at 5\xa0years; P\xa0=\xa00.003); multivariate analysis showed that the type of biliary drainage was an independent predictor of survival (P\xa0=\xa00.036) and seeding metastasis (P\xa0=\xa00.001). After two new cohorts with 82 patients each has been generated after 1:1 propensity score matching, the overall survival rate in the PTBD group was significantly less than that in the EBD group (34.7\xa0% vs 52.5\xa0% at 5\xa0years, P\xa0=\xa00.017). The estimated recurrence rate of seeding metastasis was significantly higher in the PTBD group than in the EBD group (30.7\xa0% vs 10.7\xa0% at 5\xa0years, P\xa0=\xa00.006), whereas the recurrence rates at other sites were similar between the two groups (P\xa0=\xa00.579).\Question: Is percutaneous biliary drainage oncologically inferior to endoscopic drainage : a propensity score matching analysis in resectable distal cholangiocarcinoma?
[A]:
Compared with EBD, PTBD increases the incidence of seeding metastasis after resection for distal cholangiocarcinoma and shortens postoperative survival.