To formulate a strategy for the implementation of EHR systems in India, it is necessary to look into these initiatives to benefit from their experience. In the following two subsections, we briefly discuss the status of EHR adoption in several countries and that in India.
1. International Scenario
Canada launched an initiative in 2001 to modernize its ICT infrastructure in healthcare [
7]. In 2015, EHRs were created for 91% of Canadians, and 91,000 clinicians were using EHR systems in their work. The number was 62,000 in 2014; thus, there was significant growth. Further, 77% of family doctors were using EHR, which is three times the percentage in 2007.
In 2001, England started a national initiative called the "National Plan for IT" (NPfIT) for modernizing its healthcare system [
89]. Under the initiative, Summary Health Records (SCRs) were created for 54 million persons (96% of the population).
In Germany, about 90% of physicians in private practice are using EHR systems. Patient privacy has been given adequate attention in the initiative. The patient can decide to hide or block any entry in the health record [
10].
New Zealand has achieved an EHR adoption rate of 97%. At present, there is no central or single EHR system, but a distributed EHR system, which can be accessed from any entity across the nation. The country is aiming to have a single EHR system by mid-2018 [
11].
In Korea, most tertiary hospitals have started using EHRs. A nationwide health information exchange (HIE) platform is being built for the exchange of health information among the healthcare facilities. The platform supports open application program interfaces (APIs) to implement a document registry, a document repository, and a master patient index. They use various standards, such as HL7, CDA, and Integrating the Healthcare Enterprise (IHE) Cross-enterprise Document Sharing-b (XDS.b) profile to build a nationwide secure HIE [
12].
The United States has been working on the adoption of EHR for quite some time [
13]. The federal government is providing financial incentive to those who make 'meaningful use' of EHR [
14]. The incentive is given through the Office of National Coordinator (ONC) for Health Information Technology to those who have started using EMRs [
15]. According to the data available, in 2014, 76% of hospitals had adopted basic EHR systems. It has been reported that 97% of the acute care hospitals have adopted certified EHR systems.
2. National Scenario
India has a mixed system of healthcare consisting of a large number of hospitals run by the Central Government and State Government as well as the private sector. In general, the level of use of ICT in the healthcare sector in the country has been lower in comparison to other countries. At the same time, both union and State Governments are working on several fronts to make use of the opportunities offered by ICT. Private sector hospitals are also in the process of implementing ICT projects, including electronic patient records.
Some of the corporate hospitals in India, such as Max Health, Apollo, Sankara Nethralaya, Fortis, etc., have implemented integrated ICT systems in place, covering all aspects, i.e., registration and billing as well as laboratory and clinical data. Max Healthcare hospitals started implantation of EHR in its hospitals in 2009 and achieved Stage 6 level of the EMR Adoption Model, which is used by the HIMSS for assessment of the level of adoption of EMR systems in any hospital [
16]. Max Healthcare Group received the recognition for two of its hospitals—East Wing, Saket and West Wing, Saket, New Delhi in 2012.
The Apollo Group also has implemented EHR in its hospitals and achieved Stage 6 in the EMR Adoption Model for four of its hospitals located at Chennai, Nandanam, Aynambakkam, and Jubilee Hills [
17].
Sankara Nethralaya (SN) has implemented an EMR system in its hospitals and satellite clinics in Chennai [
18]. It engaged Tata Consultancy Services (TCS) for the implementation. SN and TCS also offer the EMR suite and hospital management system to other hospitals.
However, even in private hospitals, EMRs are rarely exchanged between hospitals. These remain in the same hospital and are referenced when the patient visits again. There is no authentic report on the number of patients whose EMRs/EHRs have been stored so far.
3. Analysis
As mentioned above, the reports of several countries were analyzed to find the activities that have been crucial parts of their strategies. Regarding infrastructure, it was observed that there are several areas in which governments are investing. These include the creation of ICT infrastructure in healthcare facilities, secure health information communication networks, and health information storage and exchange, among others.
In the United States, healthcare providers are encouraged to use EMR/EHR systems. They are given financial benefits when they start using 'Meaningful EHR'. For the creation of information exchange facilities, the US government provides financial support to the community once they decide to build it.
To provide cost effective solutions to public healthcare facilities, countries have made use of open-source solutions. A large number of public healthcare facilities in the United States use the VISTA EHR system. It is available in the opensource domain. In England, the NHS encourages the use of open-source software solutions, and such solutions are operational in several places.
In some countries, personally controlled health records (PCHRs) or personal health records (PHRs) have been used for the exchange of health information when a patient moves from one provider to another. An example is Australia, where a PHCR system is used for the exchange of health information among the healthcare providers [
19].
The second dimension is policy and regulations. Most countries have formulated national health IT policies that covers a spectrum of issues, such as the way health information is collected and shared. Different countries have formulated different policies to push the adoption of EHR systems. For example, in some countries, every healthcare provider has to create a summary record to be stored in a central place, whereas in other countries, the health information is distributed and is accessed when it is needed.
Regulations have been enacted for privacy protection, enabling the exchange of health information for the collection of patient information for use in clinical research and other purposes. In the United States, the Health Information Portability and Accountability Act (HIPAA) has existed for a long time. The rules of the HIPAA are more stringent for electronic records. In some countries, the privacy issue has been dealt with under acts that have been enacted to protect the privacy of any kind of personally sensitive information. For example, in Korea, privacy issues are covered by various acts, including the Telecommunications Business Act, the Protection of Communications Secrets Act, etc.
In Canada, the Personal Information Protection and Electronic Documents Act (PIPEDA), which protects personal information against improper collection, use, and disclosure, was extended to the healthcare sector in 2002. These laws also deal with the rights of patients as well as the powers of the government regarding the collection of data for various purposes. In most cases, data can be used after annonymization only.
Standards & interoperability is the third area of activity. Though international standards exist, there are several aspects which have to be looked into by every country as the processes used and infrastructure available in healthcare facilities differ from country to country. Country-specific meta-data standards have to be formulated and enforced to make systems interoperable.
The openEHR consortium [
20] has developed an open and detailed specification of EHR. It has been adopted by several countries. The European Committee for Standardization has adopted many constructs of openEHR in its standard CEN EN 13606 prescribed for European Countries [
21]. Other standards that are used in health IT applications include Health Level Seven (HL7) for exchange of messages [
22], Digital Imaging and Communications in Medicine (DICOM) for representation, storage, and transmission of medical images [
23], and the Continuity of Care Record (CCR) & Continuity of Care Document (CCD) for organizing the most relevant information for the purpose of the continuity of care.
Apart from these standards, there are several medical codes that are extensively used in the representation and storage of health information. The important ones include the International Classification of Diseases (ICD) of the World Health Organization [
24], Systematized Nomenclature of Medicine - Clinical Terms (SNOMED-CT) published by SNOMED International [
25] and Logical Observation Identifiers, Names and Codes (LOINC), which is primarily used in medical laboratories [
26].
Most countries have established organizations to maintain standards in health IT. The US government supports agencies such as the Certification Commission for Health Information Technology (CCHIT) [
27] and the Health Information Technology Standards Panel (HITSP) [
28] to define needed functionalities, standardization of data exchange and collaboration among stakeholders. In Canada, Infoway has created the Standards Collaborative, which coordinates the development and adoption of standards.
Different countries have implemented different mechanisms for the generation of unique identification numbers for patients, which is necessary for interoperability. In New Zealand, the patient identity number system, called the "National Health Index" has existed for a long time. Its electronic version has been used in the implementation of EHR systems. In England, the NHS number is being used as patient identification number.
Governments are supporting R&D and human resource development for health IT. R&D is focused on the development of techniques to improve the quality of healthcare. Apart from the improved delivery of healthcare services, EHR is being used to improve clinical decision-making and to support decision-making for public health. In the United States, several projects have been funded under the Strategic HIT Advanced Research Projects (SHARP) Programme.
Schemes have been initiated to impart education and training in the area of health IT so that skilled manpower can be made available. The education and training programmes have been initiated for a range of medical and paramedical professions. Online courseware has been developed for training and retraining of the manpower.
The analysis of the strategies shows that there are several activities that have contributed significantly to the successful implementation of EHR systems. Some steps are countryspecific to deal with country-specific issues.
Figure 1 shows various components in the adoption of EHR. There are four broad components: ICT infrastructure, Policy & regulations, Standards & interoperability, and Research, development and education. The activities under each of these categories are listed in
Table 1.