Global youth tobacco survey: Web codebook, all schools and regions
8-12 However, these studies were all limited in that they were either restricted to samples of males only 9,12 or failed to adjust for important smoke-related factors that could have confounded their findings, such as lifetime smoking (e.g., cigarette pack years or smoking duration), 10,11 current smoking status, 8,11 and smoking intensity
132-133 Hendriks, Ella, Tilborgh, Louis van, Eikema Hommes, M
His resemblance to Elvis surely helped put him on the radar of anyone making an Elvis project in the 1980s and 1990s, but he, fortunately, had the acting chops to back up the brooding good looks
a bit like #McDonalds index by the #theeconomist) or mean value of cigarette basket as a case in point
The percentage of high school students who are currently sexually active (had sexual intercourse during the past three months) has been decreasing since 1991, dropping from 38 percent in 1991 to 30 percent in 2015