OBJECTIVE:To examine the rate of weight gain over time among Americans by age, gender, and race. PARTICIPANTS: Scientific sample of 5117 Americans, ages 25-74 y in 1971 followed for 20 y. RESULTS: Rates of weight gain estimated by mixed effects models are highest among young adults and rates of weight loss are greatest among older adults. The overall shape of the growth curves are similar for men and women, black and white, in terms of both weight gain and weight loss. Rates are also affected by baseline body mass index (BMI ¼ wt in kg/height in m 2 ). CONCLUSIONS: Americans gain weight until middle age, stabilize, and begin to lose weight near age 60. Weight loss during old age is especially evident for obese Americans. The ability to accurately identify groups with increased risk and target them for obesity prevention will help combat the steady rise of overweight and obesity in America.
Pregabalin provided significantly improved treatment outcomes as compared with placebo, and augmentation rates were significantly lower with pregabalin than with 0.5 mg of pramipexole. (Funded by Pfizer; ClinicalTrials.gov number, NCT00806026.).
Discontinuation effects following cessation of 12 and 24 wk of pregabalin treatment for generalized anxiety disorder (GAD) were evaluated in a placebo- and lorazepam-controlled, randomized, double-blind, multicentre trial conducted in 16 countries. The study design consisted of two 12-wk treatment periods (periods 1 and 2), each followed by a 1-wk taper and two post-discontinuation assessments, one immediately following the taper and one 1-wk post-taper. Patients were assigned to receive an initially flexible dose of pregabalin 450-600 mg/d, pregabalin 150-300 mg/d, or lorazepam 3-4 mg/d for 6 wk; responders continued fixed-dose therapy for 6 additional weeks. Patients entering period 2 continued on the same fixed dose or switched to placebo. Discontinuation effects were evaluated with the Physician Withdrawal Checklist (PWC) and reported discontinuation-emergent signs and symptoms. Rebound anxiety was measured with the Hamilton Anxiety Rating Scale. GAD symptoms improved with all treatments and improvements were maintained over 12 and 24 wk. Low levels of discontinuation symptoms were evident in all treatment groups. For patients who received active treatment during both periods, mean (95% confidence interval) increases on the PWC from last visit on active treatment to the second post-discontinuation assessment were: pregabalin 450-600 mg/d: 2.8 (1.6-3.9), pregabalin 150-300 mg/d: 1.7 (0.7-2.8), lorazepam 3-4 mg/d: 2.2 (1.0-3.5). Rates of rebound anxiety were also low at both 12 and 24 wk (0-6%). This suggests that risk of discontinuation symptoms and rebound anxiety are low for pregabalin after 12 and 24 wk of treatment.
SUMMARYObjectives: To assess the efficacy and tolerability of add-on pregabalin controlledrelease formulation (PGB-CR) (doses of 165 or 330 mg/day) in patients with partialonset seizures (POS). Methods: This was a randomized, double-blind (DB), parallel-group study of PGB-CR once-daily as adjunctive treatment in adults with treatment-resistant partial seizures. After an 8-week baseline period, eligible patients were randomized (1:1:1) to placebo, PGB-CR 165 mg, or PGB-CR 330 mg for 14 weeks, including a 2-week dose escalation. Primary endpoint was the log e -transformed 28-day seizure rate for all POS with observable component during the full 14-week double-blind treatment phase. Secondary endpoints included the 50% responder rate and percent change from baseline in 28-day POS rate. Results: Three hundred twenty-three patients were randomized and received treatment; placebo (n = 110), PGB-CR 330 mg (n = 100), PGB-CR 165 mg (n = 113); and 287 (88.9%) completed the trial. The primary efficacy analysis result, expressed as percent reduction from placebo, was 13.1% and 1.0% for PGB-CR 330 mg and PGB-CR 165 mg, respectively, and was not statistically significant (p = 0.091, 0.908). The proportion of 50% responders was similar for placebo (35.8%) and 165 mg PGB-CR (37.8%) and nominally higher for 330 mg PGB-CR (45.9%, p = 0.125 compared to placebo). The LS mean estimates of the percent change from baseline for placebo (À5.7%) was nominally smaller than 165 mg PGB-CR (À15.0%, p = 0.540) and 330 mg PGB-CR (À31.5%, p = 0.079); however, the median percent changes from baseline were not as well differentiated (placebo, À35.4%; 165 mg PGB-CR, À38.0%; 330 mg PGB-CR À43.4%). Rates of adverse events (AEs) were low for placebo and study drug; the most frequent reported AEs were dizziness, somnolence, and fatigue, consistent with the immediate-release formulation. Significance: Results from this trial did not demonstrate that PGB-CR is effective in reducing seizure frequency below that of placebo. Both doses of PGB-CR were shown to be safe and well-tolerated.
Random forest modeling can determine likelihood of a DPN diagnosis. Further validation of the random forest model may help facilitate earlier diagnosis and enhance management strategies.
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