CDC Resources

CityHealth Gives Communities the Tools to Build Healthier Populations!

The Community Guide is releasing a new Community Guide in Action Story, CityHealth Gives Local Communities Evidence-Based Tools to Improve Health.

CityHealth, an initiative of the de Beaumont Foundation and Kaiser Permanente, provides city leaders with a package of evidence-based policy solutions that will help people live longer, better lives. Community Preventive Services Task Force recommendations are among the evidence-based resources considered by CityHealth in their selection of policy solutions.


Be inspired! Read the full Community Guide in Action Story to learn more about the CityHealth initiative and how they used a reward program to encourage cities to adopt public health policies to improve population health.



Lifestyle Interventions During Pregnancy Reduce Gestational Diabetes Risk

Three pregnant women doing yoga.The Community Preventive Services Task Force (CPSTF) recommends lifestyle interventions delivered during the first two trimesters of pregnancy to reduce the risk of gestational diabetes. Compared to usual care, lifestyle interventions reduced the overall risk of developing gestational diabetes by 32%.

The recommendation is based on strong evidence of effectiveness for lifestyle interventions that provide supervised exercise classes, either alone or in combination with lifestyle education and counseling. The CPSTF also finds sufficient evidence of effectiveness for lifestyle interventions that provide education and counseling for diet or physical activity, diet activities, or a combination of these components.

A team of specialists in systematic review methods and in diabetes management research, practice, and policy assessed evidence from 29 studies identified in the following published review:

Song C, Li J, Leng J, Ma R C, and Yang X. Lifestyle intervention can reduce the risk of gestational diabetes: a meta-analysis of randomized controlled trials. Obesity Reviews 2016; 17: 960–9.

About half of all women who develop gestational diabetes are likely to develop type 2 diabetes later in life (CDC, 2017). Babies whose mothers have gestational diabetes are at higher risk of being born early, having low blood sugar, and developing obesity later in life (CDC, 2017 ).

For More Information:

Primary Prevention Reduces Intimate Partner Violence and Sexual Violence Among Youth

A group of teenagers hanging out and having fun.The Community Preventive Services Task Force (CPSTF) recommends primary prevention interventions that aim to prevent or reduce intimate partner violence and sexual violence among youth. Evidence shows these interventions decrease perpetration of intimate partner violence and sexual violence and increase bystander action.

The recommendation is based on a systematic review of 28 studies published through June 2016. Included studies evaluated interventions that combined educational information about intimate partner violence and sexual violence with strategies to teach healthy relationship skills, promote social norms that protect against violence, or create protective environments.

Primary prevention programs aim to reduce a person’s risk of committing violence, as preventing perpetration before it starts has the greatest potential to reduce rates of violence and improve public health (Cox et al.2010; DeGue et al., 2012; McMahon, 2000). Programs may target potential perpetrators or bystanders—people close to a situation who can challenge violence-supportive norms by directly reducing risk (e.g., by noticing a risky social situation and intervening) or by indirectly reducing risk (e.g., by challenging hostile attitudes towards women such as offensive jokes or objectifying language).

A CDC report found that among victims of contact sexual violence, physical violence, or stalking by an intimate partner, nearly 26% of females and 15% of males first experienced some form of violence by that partner before age 18 (Smith et al., 2018 ). In the United States, 7.4% of high school students report having ever been physically forced to have sexual intercourse when they did not want to (Kann et al., 2018 ). Unhealthy, abusive, or violent relationships can have short- and long-term negative effects on a developing teen. Youth who experience dating violence are more likely to experience symptoms of depression and anxiety; engage in unhealthy behaviors, such as using tobacco, drugs, and alcohol; exhibit antisocial behaviors; and think about suicide (CDC 2018 ).

The CPSTF recommendation aligns with and supports strategies and approaches described in CDC’s Technical Packages on intimate partner violence and sexual violence. These packages are designed to help states and communities use the best available evidence to prevent violence.

For More Information:


CDC. Teen Dating Violence . Atlanta (GA): National Center for Injury Prevention and Control, Centers for Disease Control and Prevention; 2018.

Cox PJ, Ortega S, Cook-Craig PG, Conway P. Strengthening systems for the primary prevention of intimate partner violence and sexual violence: CDC’s delta and empower programs. Journal of Family Social Work 2010;13(4):287–96.

DeGue S, Simon TR, Basile KC, Yee SL, Lang K, et al. Moving forward by looking back: reflecting on a decade of CDC’s work in a sexual violence prevention, 2000–2010. Journal of Women’s Health 2012;21(12):1211–8.

Kann L, McManus T, Harris WA, Shanklin SL, Flint KH, et al. Youth risk behavior surveillance — United States, 2017 . MMWR Surveill Summ 2018;67(8).

McMahon PM. The public health approach to the prevention of sexual violence. Sexual Abuse: A Journal of Research and Treatment 2000;12(1):27–36.

Smith SG, Zhang X, Basile KC, Merrick MT, Wang J, Kresnow M, Chen J. National Intimate Partner and Sexual Violence Survey: 2015 Data Brief . Atlanta (GA): National Center for Injury Prevention and Control, Centers for Disease Control and Prevention; 2018.



CDC Clear Communication Index


The Clear Communication Index is designed to help you communicate clearly with your intended audience. It has four introductory questions and 20 scored items drawn from scientific literature in communication and related disciplines. You can use the Index in several ways such as to:

  • Inform the design and development of a new communication widget
  • Assess the clarity of a communication product before or after public release
  • Foster discussion and collaboration between writers and reviewers before or during the clearance process as you work to attain scientific accuracy and clarity of content


CDC CCI WidgetWith just a click of your mouse on the box, you can begin scoring and developing materials that enhance people’s understanding of the message you want to deliver!













National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP) launches CORIDOR
CDC’s National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP) recently launched CORIDOR (Collection of Online Resources & Inventory Database: Organized and Readily accessible). CORIDOR is an online portal designed to provide easy access to credible, evidence-based and practical chronic disease prevention tools and resources in one location. CORIDOR is a seamless path for public health practitioners to access CDC and other current public health resources.