A growing trend in health care in the past decades was the increased availability of information about health, health care and specific diseases on the Internet (Ayers and Kronenfeld 2007). Currently, the internet has 513 million users worldwide. The young people continue to be one of the highest users of the Internet, often use this media to get answers to their questions, and also to search the health-related information (Sarchiapone 2013). Until 2014, Internet users in Indonesia had reached 88.1 million which were equal to 34.9% of its citizens (Indonesia APJI 2014).
Based on the National Cancer Institute's Health Information study, 68% of respondents were looking for the health-related information from the internet as their first reference, and only 16% contacted the health provider (Volkman et al. 2014). Meanwhile, a lot of information through this media on the internet were not valid. Everybody can give any information through this media (Kammerer et al. 2015), where many of that information was only based on experiences(McCaw et al. 2014; Guardiola et al. 2011).
On the other hand, the internet can give many advantages for health providers to become more flexible in reaching citizens using the alternative way besides the conventional methods. Several studies showed that the more a person found information from the internet, the more possible that person changed their lifestyle and health behavior (Ayers and Kronenfeld 2007; Davies et al. 2012; Maxwell 2015; Roman 2014; Milinovich 2014; Nawi and Jamaludin 2015; Plencner 2014). Another study also found that internet is an effective way to get more information besides the therapist, and the health providers, especially information related to nutrition and pregnancy (Huberty et al. 2013). Internet also constitutes a promising and cost-effective treatment alternative for a wide range of psychiatric disorders and somatic conditions (Rozental et al. 2015).
The Internet is a promising health information source and one of the facilities for health intervention if it's used in a proper way and for a correct population. Systematic Review of the previous studies needs to be done in several countries in the world to find out the effectiveness. The Internet can create and develop proper methods in promoting quality of health.
This study used Systematic Review based on PRISMA 2009. Data were obtained from online journals databases such as ProQuest and Science Direct because many studies were related to the topic. To get the latest data, the publishing year was limited from 2013 until 2016. The keywords used was internet intervention and health behavior.
The studies above were held in developed countries, which had a higher living standard, high technology, and evenly economic development (Wikipedia 2015). The research in the countries of the America and Europe continents showed that Internet were more proactive and made the information from the Internet as additional information beyond the data obtained from health practitioners and tended to use the facilities of Internet-based applications available to improve the quality of their health independently. While the countries in the Asian continent, most of the internet users use the internet to find health information, only a few are willing to freely use the facilities of Internet-based applications that have been provided to improve the quality of their health. From this study, most of the respondents nowadays tend to use the internet to find out almost any information, in this case, is health-related information. Some of the respondents use the information from the internet as an added knowledge after meeting their health provider mostly from social media, as their first reference in making their health decision, despite most of this information were not based on from scientific study result. The respondents also wish that the government and health organization provide more valid data on their official website, so they can feel safe to use the information. As we know together that finding practical and affordable ways to support the use of social media and encourage access to online health information and use of online health services could improve health literacy and self-management of health at the individual level and increase the efficiency in the provision of health services at the institutional level (Mano 2014).
The study used different cases, methods and amount of sample, so that would not be easy to find out the relationship between each of them.
The Internet has become a crucial necessity in people's daily lives. As a source of health information, unfortunately, there is still a lack of valid and appropriate information available in it. This systematic review suggests that the government provide more accurate information through their official website, and the health provider considers to optimally use the advantages of using internet intervention to promote a healthy lifestyle. This study may also be done in developing countries such as Indonesia.