Efficacy and side effects of cisplatin- and carboplatin-based doublet chemotherapeutic regimens versus non-platinum-based doublet chemotherapeutic regimens as first line treatment of metastatic non-small cell lung carcinoma: a systematic review of randomized controlled trials.

UNLABELLED: Evidence suggests that platinum-based regimens confer a better survival in patients with non-small cell lung carcinoma (NSCLC). However, evidence is lacking regarding the specific effects of cisplatin or carboplatin when compared to non-platinum-based doublets. METHODS: Meta-analysis of all randomized trials comparing non-platinum-based with platinum-based doublet regimens given as first-line treatment for NSCLC. Relative risks were calculated for all outcomes ascertained. Sensitivity analysis, using methodological quality of the trials and different measures of effect, was undertaken. RESULTS: Seventeen trials, comprising 4920 patients were included. The use of platinum-based doublet regimens was associated with a slightly higher survival at 1 year (RR=1.08, 95% CI 1.01-1.16, p=0.03), better partial response (RR=1.11, 95% CI 1.02-1.21, p=0.02), with a higher risk of anemia, nausea, and neurotoxicity. Cisplatin-based doublet regimens improved survival at 1 year (RR=1.16, 95% CI 1.06-1.27, p=0.001), complete response (RR=2.29, 95% CI 1.08-4.88, p=0.03), partial response (RR=1.19, 95% CI 1.07-1.32, p=0.002) with an increased risk of anemia, neutropenia, neurotoxicity and nausea. Conversely, carboplatin-based doublet regimens did not increase survival rate at 1 year (RR=0.95, 95% CI 0.85-1.07, p=0.43). There was a statistically significant difference between the effect of cisplatin compared to carboplatin (p=0.05). Carboplatin-based doublet regimen included a higher risk of anemia and thrombocytopenia, but no increased nausea and/or vomiting, contrarily to cisplatin. Sensitivity analyses showed that the results were robust to the exclusion of lesser quality trials and the choice of the measure of effect. CONCLUSION: We provide additional evidence that cisplatin, but not carboplatin-based doublet regimens are associated with a slightly better survival compared to non-platinum-based doublet regimens. Side effects of cisplatin- and carboplatin-based regimens differ between each other and when compared to non-platinum doublets. Although this analysis has limitations, it may provide valuable information to clinicians when choosing the appropriate regimen for patients with non-small cell lung cancer.

General practitioners' knowledge and practice of complementary/alternative medicine and its relationship with life-styles: a population-based survey in Italy.

BACKGROUND: The growing popularity of CAM among the public is coupled with an ongoing debate on its effectiveness, safety, and its implications on the reimbursement system. This issue is critically important for GPs, who have a "gatekeeping" role with respect to health care expenditure. GPs must be aware of medications' uses, limitations and possible adverse effects. Our objective was to explore GPs' knowledge of CAM and patterns of recommendation and practice, as well as the relationship between such patterns and GPs' life-styles. METHODS: A cross-sectional study was conducted in Tuscany, a region of central Italy. One hundred percent female GPs (498) and a 60% random sample of male GPs (1310) practising in the region were contacted through a self-administered postal questionnaire followed by a postal reminder and telephone interview. RESULTS: Overall response rate was 82.1%. Most respondents (58%) recommended CAM but a far smaller fraction (13%) practised it; yet 36% of CAM practitioners had no certificated training. Being female, younger age, practising in larger communities, having had some training in CAM as well as following a vegetarian or macrobiotic diet and doing physical activity were independent predictors of CAM recommendation and practice. However, 42% of GPs did not recommend CAM to patients mostly because of the insufficient evidence of its effectiveness. CONCLUSION: CAM knowledge among GPs is not as widespread as the public demand seems to require, and the scarce evidence of CAM effectiveness hinders its professional use among a considerable number of GPs. Sound research on CAM effectiveness is needed to guide physicians' behaviour, to safeguard patients' safety, and to assist policy-makers in planning regulations for CAM usage.

[Non-conventional medicine in Tuscany: attitudes and use in the population]. / Le medicine non convenzionali in Toscana: attitudini e utilizzo nella popolazione.

OBJECTIVES: With the aim of facilitating complementary/alternative medicine (CAM) regulation by decision-makers in the Tuscan region, objectives of the analysis were: 1) to estimate the frequency and motivations of CAM use (acupuncture, homeopathy, phytotherapy, manipulative therapies) within the Tuscan population; 2) to identify variables associated with CAM use; 3) to investigate public opinion concerning CAM. DESIGN: We have analysed the regional data collected by the ISTAT through the survey Multiscopo su "Condizioni di salute e ricorso ai servizi sanitari", years 1999-2000. PARTICIPANTS: The analysis was carried out on 5670 subjects > 20 years resident in the Tuscan region between July 1999 and June 2000. MAIN OUTCOME MEASURES: Usefulness, utilization and benefits concerning CAM. RESULTS: Forty-five percent of the surveyed population consider useful at least one type of CAM, and 20% had used CAM at least once in the three years prior to the interview. Most frequent users are middle-aged women with higher educational levels, and manipulative therapies and homeopathy are the most used remedies. Disorders that mostly have induced the population to use CAM are pain syndromes. CONCLUSIONS: Overall, the Tuscan population has a positive attitude towards CAM use, which is slightly more frequent than the average national use.

The effect of caffeine consumption and nausea on the risk of miscarriage.

Evidence for a harmful effect of caffeine intake on risk of miscarriage (spontaneous abortion) is inconsistent and nausea during pregnancy has been claimed to explain any association seen. The objective of this analysis was to determine whether caffeine consumption both before and during pregnancy influenced the risk of miscarriage in a group of pregnant women in the UK. We examined the association with maternal caffeine intake in a case-control study of 474 nulliparous women. Participants were recruited during the years 1987-89 from the Royal Berkshire Hospital in Reading and from a large group practice situated within the hospital's catchment area. Cases were 160 women with a clinically diagnosed miscarriage and controls were 314 pregnant women attending for antenatal care. Information on coffee/tea/cola consumption and potential confounders was collected by interview and caffeine content was assigned to individual drinks according to published data on caffeine content of beverages. Compared with a maternal caffeine intake of < 151 mg/day, we found evidence that caffeine consumption > 300 mg/day doubled the risk of miscarriage. Adjusted odds ratios were 1.94 [95% CI 1.04, 3.63] for 301-500 mg/day and 2.18 [95% CI 1.08, 4.40] for > 500 mg/day. This effect could not be explained by nausea in pregnancy. Nausea appeared to be strongly independently associated with a reduced risk of miscarriage (test for trend P < 0.0001). There was no evidence that prepregnancy caffeine consumption affected the risk. Our results indicate that high caffeine consumption during pregnancy (>300 mg/day), in particular coffee consumption, is an independent risk factor for increased risk and nausea is an independent protective factor for a lower risk of miscarriage.