An analysis of recent observations (2004–2013) made by the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) instrument indicate that total carbon (COx=CO+CO2) has been increasing rapidly in the lower thermosphere, above 10 3 hPa (90 km). The estimated trend (~9% per decade) is about a factor of 2 larger than the rate of increase that can be ascribed to anthropogenic emi...

STUDY OBJECTIVE Is there any epidemiologically visible influence on the cancer incidence after the Chernobyl fallout in Sweden? DESIGN A cohort study was focused on the fallout of caesium-137 in relation to cancer incidence 1988-1996. SETTING In northern Sweden, affected by the Chernobyl accident in 1986, 450 parishes were categorised by caesium-137 deposition: < 3 (reference), 3-29, 30-39,...

AIM To assess secular trends in birth weights of liveborn infants in Croatia from 1983 to 2003. METHODS Of a total of 959,591 liveborn infants in the study period, 384,367 were born in the prewar (1983-1989), 226,226 during the war (1991-1995), and 348 998 in the postwar (1996-2003) period. The birth weight of liveborn infants was assessed by 500 g weight groups on the basis of data provided ...

BACKGROUND Several studies have shown that the waist circumference of children and adolescents has increased over the last 25 years. However, given the strong correlation between waist circumference and BMI, it is uncertain if the secular trends in waist circumference are independent of those in BMI. METHODS We analyzed data from 6- to 19-year-olds who participated in the 1988-1994 through 20...

BACKGROUND Cross-sectional analyses suggest that total and low-density lipoprotein cholesterol (LDL-c) trends that had been declining are now reversing. We examined longitudinal data from the Coronary Artery Risk Development in Young Adults (CARDIA) study to examine secular trends in total cholesterol, LDL-c, high-density lipoprotein cholesterol (HDL-c), and triglycerides over 25 years. We also...

Puberty-timing measures have historically been used as indicators of adequate nutrition and growth. More recently, these measures have been examined in relation to exposure to estrogenic or antiandrogenic agents, as well as other environmental factors. The scientific community has debated whether puberty timing is occurring earlier today than in the mid-1900s in the United States and, if so, wh...