Forecasting Future Demand of Nursing Staff for the Oldest-Old in China by 2025 Based on Markov Model.

In 2025, the population size of the Chinese oldest-old will be further expanded, and the demand of care will increase accordingly, leading to a vast gap in the nursing staff. Therefore, it is urgent to build a professional nursing staff with excellent comprehensive quality and reasonable quantity, to ensure the sustainable development of China's elderly care service industry.