1, the difficulty of data acquisition;

2, the low degree of correlation of the data;

3, the incomplete data records;

4, the low utilization of data and other problems.

And the main reason for these problems is the construction of medical information systems early, the lack of overall planning, data statistics have more than one system source, resulting in data statistics of different caliber, management measures are difficult to implement, difficult to form the management of clinical knowledge and accumulation of decision-making and analysis of ineffective support for the business application of excessive pressure.