case

Assuming a base case population of 24,000 patients treated with PN, savings driven by a progressive adoption of NUMETA could range between US$1.

In the phone interviews, outpatient office visits were a more frequent (97%) health care exposure than in the overall case population.

However, it is also important to look at the origin of the two populations to assess whether the level of matching is appropriate, eg, if the case population is recruited from a hospital clinic and the control population is recruited from university staff and students, there may be other important factors such as economic or education status that may influence the results; therefore matching should account for these factors as well so that the control population is as similar to the case population as possible.

Of these, 133 cases were professionals, clerks, or administrative personnel according to their current occupation as classified by the 1988 International Standard Classification of Occupations (ISCO-88) (International Labor Organization 1988), and these form the case population for this study.

In Africa's case population ageing is projected to be only moderate, increasing from 19 years up to 28 years, with 34 of the 54 countries in Africa projected to have median ages lower than 30 by 2050.