Table 2.

Publications with metrics descriptions.

Country	Metric
1. Brazil [18]	Develops an index to measure job instability among nursing personnel.
2. Colombia [19]	Proposes a formula for calculating HRH supply and demand. Quantifies tasks assigned to nurses and uses formulae to substitute occupational profiles.
3. Mexico [20]	Generates formulae to calculate labor wastage in five occupational categories.
4. Peru [21]	Presents information regarding the four areas of HRH and develops an analysis of in-country HRH distribution.
5. Peru [22]	Uses formulae for projecting physician demand and needs between 2006 and 2011. Makes projections of physician supply and needs in Peru.
6. Nicaragua [23]	Proposes formulae for calculating the number of physicians required according to hospital profile; and calculations to determine nursing personnel, general practitioners required to meet hospital admission demands, and nursing staff needs.
7. Mexico [24]	Uses formulae to measure occupational status, rates of unemployment, and underemployment.