Ever use was not associated with increased risk (RR = 1.0), but a significant trend was observed with increasing years of use, with users of 20 or more years being at a 50% excess risk.
The development of residents' skills in pleural effusion ultrasound and chest drain positioning appears to progress steadily with increasing years of residency, reaching a plateau in the last 2 years.
Taking this approach, we find that the extent of undereducation of migrants is far greater than that of overeducation and that both overeducated and undereducated migrants become more similar to comparable native-born with increasing years of residence in New Zealand.
This was only partially found to be true in our study; we observed a continual growth in US-guided procedure skills with increasing years of residency comparable to a 'snowball effect.' Our teaching program begins with theoretical classes on the basic principles, followed their application in real clinical practice, according to the residency year.
Taking this approach, we find that most groups of migrants are more likely to be undereducated than similarly qualified natives, again likely due to positive migrant-selection effects, and that both overeducated and undereducated migrants become more similar to comparable native-born with increasing years of residence in New Zealand.
There are other telltale signs of increasing years, of course.
There was a prominent effect of increasing years of age from baseline in both groups with 7 and 11 percent increase in mortality risk per year of age in those aged below and above 60 years respectively.
These risks increased with increasing years of work.
Experience in this field is apparently gained with increasing years of practice.
Frequency of events reported was found to increase with increasing years of experience.
The present findings show that risk clearly decreases with increasing years of smoking cessation.
