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More adults reported exercising, teen births decreased while chlamydia incidence climbed.


Definition: Percentage of adults who met the federal physical activity guidelines (150 minutes of moderate or 75 minutes of vigorous aerobic activity and two days of muscle strengthening per week).
Regular physical activity is a vital element of a healthy lifestyle. Being physically active and reducing sedentary behavior has many health benefits according to the U.S. Department of Health and Human Services. Regular physical activity (at least 150 minutes a week) is associated with reduced risk of cardiovascular diseases, type 2 diabetes, certain cancers, anxiety and depression.
Between 2017 and 2019, exercise increased 13% nationally from 20.3% to 23.0% (Figure 32), an increase of nearly 4.9 million adults. During this time, significant improvements occurred in 21 states and the District of Columbia (Figure 33). During this two-year period, exercise increased:

Exercise varies across states and by gender, age, education, income as well as race and ethnicity. The largest differences in the prevalence of exercise were by education, geography and income (Figure 34). In 2019, the prevalence of exercise among adults was highest in Vermont (28.5%), Montana (28.3%) and Colorado (27.4%). It was lowest in Kentucky (15.3%), Oklahoma (15.6%) and Mississippi (15.7%). In 2019, the prevalence of exercise among adults was higher among (Figure 35):


Definition: Number of new cases of chlamydia per 100,000 population.
Chlamydia is the most commonly reported sexually transmitted infection according to the CDC and can infect men and women. Chlamydia is caused by the bacterium Chlamydia trachomatis. More than 1.7 million chlamydia cases were reported to the CDC in 2018, though many more cases go undiagnosed and unreported. Chlamydial infections are usually asymptomatic but can cause permanent damage to reproductive organs.
The chlamydia incidence rate increased 47% from 367.5 to 539.9 cases per 100,000, between 2007 and 2018 (Figure 36). Between 2017 and 2018, the chlamydia incidence rate increased 3% nationally from 524.6 cases per 100,000. Incidence increased 40 or more cases per 100,000 in Delaware (560.5 to 627.7 per 100,000), Hawaii (479.8 to 541.8), Nevada (542.4 to 584.0) and Tennessee (522.4 to 569.0).
The incidence of chlamydia varies across states and by gender and race and ethnicity (Figure 37). In 2018, the highest incidence rate was among the Black/African American population, followed by American Indian/Alaska Native, Native Hawaiian/Pacific Islander, Hispanic, white and multiracial populations. The lowest incidence rate was among the Asian population (Figure 38). The incidence of chlamydia was highest in Alaska (832.5 cases per 100,000 population), Louisiana (774.8) and Mississippi (740.1). It was lowest in West Virginia (198.2 cases per 100,000 population), Vermont (274.5) and New Hampshire (278.1). The chlamydia incidence rate was higher among females than males.

Teen births

Definition: Number of births per 1,000 females ages 15-19.
Substantial health, social and economic costs are associated with teen pregnancy and childrearing. According to the CDC, teen mothers are significantly more likely to drop out of high school and face unemployment. Children born to teen mothers are more likely to have worse educational, behavioral and health outcomes than children born to older parents.
Between 2008 and 2018, teen births declined 57% from 40.2 to 17.4 births per 1,000 females ages 15-19 (Figure 39). Since 2017, teen births declined 7% nationally from 18.8 births per 1,000 females ages 15-19, or 14,506 fewer births. Rates declined 14% among Asian/Pacific Islander teens (4.4 to 3.8 per 1,000); 8% among American Indian/Alaska Native (31.8 to 29.2), Hispanic (29.0 to 26.7) and white teens (13.2 to 12.1); and 5% among Black teens (27.5 to 26.1). Over the same time period, teen births declined by more than 3.0 births per 1,000 in Montana (21.0 to 17.2 per 1,000), Wyoming (24.5 to 20.8) and Mississippi (30.9 to 27.8).
The teen birth rate varies across states and widely by race and ethnicity. In 2018, teen births were highest among American Indian/Alaska Native teens, followed by Hispanic, Black/African American and white teens. Asian/Pacific Islander teens had the lowest rate (Figure 40). The teen birth rate was highest in Arkansas (30.4 births per 100,000 females ages 15-19), Mississippi (27.8) and Louisiana (27.5). It was lowest in Massachusetts (7.2 births per 100,000 females ages 15-19), New Hampshire (8.0) and Connecticut (8.3).

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