Correction: Modelling the effects of quadrivalent Human Papillomavirus (HPV) vaccination in Puerto Rico.

[This corrects the article DOI: 10.1371/journal.pone.

Measuring herpes zoster disease burden in São Paulo, Brazil: a clinico-epidemiological single-center study.

Objectives: Herpes zoster is characterized by acute neuritis and post-herpetic neuralgia. Currently, data concerning the zoster-associated impact on quality of life and healthcare resource utilization in Brazil are scarce. This study measured the zoster-associated burden in a Brazilian population.

Modelling the effects of quadrivalent Human Papillomavirus (HPV) vaccination in Puerto Rico.

Background: No study has estimated the potential impact of Human Papillomavirus (HPV) vaccination in Puerto Rico, a population with considerable burden of HPV-related morbidities. We evaluated the health and economic impacts of implementing a vaccination strategy for females and males in Puerto Rico, with the quadrivalent HPV (HPV4) vaccine, under different vaccination scenarios.

Methods: We adapted a mathematical model which estimates the direct and indirect health benefits and costs of HPV4 vaccination in a dynamic population.

The Puerto Rico Cardiovascular Risk-Estimation Study (PRCaRES): an exploratory assessment of new patients in physicians' offices.

Objective: To determine the risk of developing coronary heart disease (CHD) in a cross-sectional sample of Puerto Rico residents through an analysis of the 10-year Framingham risk score.

Methods: An exploratory, retrospective, cross-sectional study of the medical records of patients 35 years or older who each visited the office of 1 of the 4 participating physicians on or after July 1, 2007.

Results: Data for 453 patients were extracted from the medical records, but 96 cases were excluded because of incomplete data or the patients' not fulfilling the inclusion criteria, thus yielding a total sample of 357 patients.

Level of awareness about osteoporosis among women 50 years and older in Puerto Rico.

Osteoporosis is an established and well-defined disease that affects millions of people around the world and is a major cause of morbidity. Not much is known about the level of awareness of the condition among the general population in Puerto Rico. The objectives of this study were: 1) to determine the level of awareness and knowledge about osteoporosis among women 50 years and older in Puerto Rico, and 2) to describe the differences in level of awareness and knowledge among women who have been diagnosed with osteoporosis and those who have not.