To calculate contributing years lost, it was assumed that, in average, patients under 65 years-old die at 41.5 years of age.
The amount of contributing years lost is the difference between life expectancy [35] and age at death.
The cost of lost labour due to the patient's death was estimated multiplying the years the patient would no longer contribute to the national wealth (contributing years lost) times the per capita gross domestic product (GDP).
Primary schools include full primary (years 0-8), contributing (years 0-6) and intermediate (years 7-8) schools.
Ex-smokers contributed smoking years until 2 years after smoking cessation.
"The IRA, since its inception, has had very clear limits on the amount that can be contributed each year.
We assumed each child who was a member of the CEMIC plan during 2008 contributed ½ year of person-time to the analysis because the study started in June-December of 2008.
Women contributed person-years and events until 80 years of age and were censored afterward.
For example, someone who was registered in the GPRD for only six months of the year would contribute 0.5 years to the denominator.
These women first contributed person years to the non-ART group and, after ART exposure, contributed person years to the ART group.
"I have already contributed five years of my time.
