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Despite the harmful effects of cigarette smoking, this habit in asthmatic adolescents continues to be a health problem worldwide. Our objectives were to determine the epidemiological profile of smoking and the degree of nicotine dependence among asthmatic adolescents.Through a cross-sectional investigation, 3383 adolescents (13–19 years of age) were studied.Information was collected using a previously...
Playa Las Glorias is the main tourist destination for the inhabitants of the municipality of Guasave, Sinaloa, México, and it overlies a shallow coastal aquifer. In recent years, the momentum of the tourism industry in the region has brought a growing demand in the consumption of drinking water. Because of this, it is relevant to the precise knowledge of the interface of slightly brackish saltwater...
Alternatives to convenience sampling (CS) are needed for HIV/STI surveillance of most-at-risk populations in Latin America. We compared CS, time space sampling (TSS), and respondent driven sampling (RDS) for recruitment of men who have sex with men (MSM) and transgender women (TW) in Lima, Peru. During concurrent 60-day periods from June–August, 2011, we recruited MSM/TW for epidemiologic surveillance...
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