New Study on Differences in Health by Sexual Orientation

May 25, 2022

Questions for Kevin Heslin, Health Statistician and Lead Author of “Sexual Orientation Differences in Access to Care and Health Status, Behaviors, and Beliefs: Findings from the National Health and Nutrition Examination Survey, National Survey of Family Growth, and National Health Interview Survey.”

Q: Why did you decide to do this report?

KH: Lesbian, gay, and bisexual (LGB) people have historically been underrepresented in national health surveillance systems, which has limited efforts to identify disparities in population health status and access to care by sexual orientation. However, the National Center for Health Statistics (NCHS) has included measures of sexual orientation in three nationally representative data systems for a number of years: National Health and Nutrition Examination Survey (NHANES), the National Survey of Family Growth (NSFG), and the National Health and Interview Survey (NHIS). These three surveys have complementary strengths that, when brought together in a single analysis, can provide a more KHThis is the first report to bring together national health statistics from three NCHS data systems for the purpose of analyzing these data by sexual identity. We wanted to show the breadth of topics that can be studied by researchers using NCHS data about the health of lesbian, gay, and bisexual (LGB) people.


Q: What did you find in your analysis?

KH: To a few, the analyses found that the association with sexual identity differed between men and women for several measures of health and access to care.

  • Mean body weight was lower in gay men than heterosexual men, but higher in lesbian and bisexual women than heterosexual women.
    • Gay men were more likely than heterosexual men to have received treatment for an STD in the previous 12 months, while lesbian women were less likely than heterosexual women to have received STD treatment in the last year.
    • Gay men reported having a usual place of medical care more often than heterosexual men. In contrast, both lesbian and bisexual women reported having this type of health care access less often than heterosexual women.
  • Other health measures showed similar associations according to LGB sexual orientation.
    • NHIS data showed that lesbian, gay, and bisexual adults all reported that they couldn’t afford common health services more often than heterosexual adults.
    • Bisexual men and women, gay men, and lesbian women all reported smoking and heavy drinking (NHIS) and using marijuana and illicit stimulants (NSFG) more often than heterosexual people.
  • There was some consistency in related health measures across the different data systems.
    • NHIS data showed that lesbian and bisexual women had higher lifetime prevalence of three conditions associated with overweight or obesity—diabetes, heart disease, and hypertension. These NHIS findings are consistent with findings from the NHANES physical examinations showing higher average body weight, waist circumference, and BMI in lesbian and bisexual women than heterosexual women.

Q: Is it fair to say that LGB people have more health problems and access to care problems than heterosexual people?

KH: There were some health measures that showed similar associations according to LGB sexual orientation. For instance, NHIS data showed that lesbian, gay, and bisexual adults all reported that they couldn’t afford common health services more often than heterosexual adults.

One of the strengths of this report was the stratification by sex. These findings suggest that the association of sexual identity with some indicators of health and access to care is different for men and women, which may have implications for the development of health programs and policies to reduce sexual orientation disparities and promote health equity. The results of this report also underscore how important it is to keep the bisexual and gay or lesbian categories separate in these kinds of analyses – in contrast to creating an overarching “sexual minority and heterosexual” categorization. Bisexual people were different from their gay or lesbian and heterosexual counterparts on several health indicators.

Additionally, there are other health problems and access to care problems that were beyond the scope of this report.


Q: What is the take-home message from this report?

KH: NHANES, NHIS, and NSFG enable research on topics relevant to the health of LGB people, which may inform efforts to advance health equity by focusing on disparities by sexual orientation.


Q: Are there plans for any follow-up research that looks into these issues further?

KH: NCHS data can support further health research relevant to LGB people. We analyzed a wide range of health-related topics in this report, but there’s more data and topics within all of these surveys to further advance health research.  These resources can help to monitor progress toward the goal of improving the health, safety, and well-being of LGB people.   


QuickStats: Percentage of Women Aged 25–44 Years Who Had Ever Used Infertility Services, by Type of Service — National Survey of Family Growth, United States, 2006–2010 and 2015–2019

October 8, 2021

mm7040a5-f

During 2015–2019, among women aged 25–44 years, 14.3% had ever used any infertility services, down from 16.8% during 2006–2010.

The percentage who had ever used medical help to get pregnant declined from 12.5% during 2006–2010 to 10.5% during 2015–2019, but the difference in the percentage ever using medical help to prevent pregnancy loss (6.8% during 2006–2010 and 5.8% during 2015–2019) was not statistically significant.

During both periods, a higher percentage had ever received medical help to get pregnant than had ever received medical help to prevent pregnancy loss.

Source: National Survey of Family Growth, 2006–2010 and 2015–2019. https://www.cdc.gov/nchs/nsfg/index.htm

https://www.cdc.gov/mmwr/volumes/70/wr/mm7040a5.htm


QuickStats: Percentage of Men and Women Aged 25–49 Years Who Spent at Least One Night in the Past 12 Months at an Alternate Location Because They Did Not Have a Permanent Place To Stay, by Type of Location

July 16, 2021

mm7028a4-f

Among adults aged 25–49 years, a higher percentage of men (4.1%) than women (2.3%) stayed at least overnight in a shelter or car or outdoors in the past 12 months because they did not have a permanent place to stay.

A higher percentage of men (6.4%) than women (4.1%) stayed at least overnight with a friend or relative in the past year.

Among both men and women, the percentage who stayed at least overnight with a friend or relative was higher than the percentage who stayed at least overnight in a shelter or car or outdoors.

Source: National Survey of Family Growth, 2017–2019. https://www.cdc.gov/nchs/nsfg/index.htm

https://www.cdc.gov/mmwr/volumes/70/wr/mm7028a4.htm


QuickStats: Percentage of Women Who Have Ever Used Emergency Contraception† Among Women Aged 22–49 Years Who Have Ever Had Sexual Intercourse, by Education

January 29, 2021

Among women aged 22–49 years who have ever had sexual intercourse, 24.3% have ever used emergency contraception.

The percentage of women who have ever used emergency contraception increased with education level, from 12.6% among women without a high school diploma or GED to 27.9% among women with a bachelor’s degree or higher.

Source: National Survey of Family Growth, 2017–2019. https://www.cdc.gov/nchs/nsfg/index.htm

https://www.cdc.gov/mmwr/volumes/70/wr/mm7004a7.htm


QuickStats: Percentage of Women Aged 22–44 Years Who Have Ever Cohabited with an Opposite-Sex Partner by Education

January 15, 2021

Among women aged 22–44 years, during 2015–2019, 67.3% had ever cohabited with an opposite-sex partner compared with 62.5% during 2006–2010.

Among women with a high school diploma, GED, or less education, the percentages of those who had ever cohabited with an opposite-sex partner were similar (72.6%) across the two periods; the percentage of women with some college or higher education who had ever cohabited was higher for 2015–2019 (64.8%) than for 2006–2010 (56.0%).

In both periods, women with a high school diploma, GED, or less education were more likely to have ever cohabited with an opposite-sex partner than were women with some college or higher education.

Source: National Survey of Family Growth, 2006–2010 and 2015–2019. https://www.cdc.gov/nchs/nsfg/index.htm.

https://www.cdc.gov/mmwr/volumes/70/wr/mm7002a5.htm


Current Contraceptive Status Among Women Aged 15–49: United States, 2017–2019

October 20, 2020

Questions for Kim Daniels, Health Statistician and Lead Author of “Current Contraceptive Status Among Women Aged 15–49: United States, 2017–2019.”

Q: Why does the CDC collect information on contraceptive use? 

KD: Collecting information on contraceptive use from women and men of reproductive age helps inform our understanding of variation in use across groups such as by age and education.  Information on contraceptive use offers potential insight into larger fertility patterns, including birth rates and incidence of unintended pregnancies. The chance that a woman not seeking a pregnancy will have an unintended pregnancy varies by whether any method of contraception is used and which method or methods she and her partner use.


Q: Was there a specific finding in the data that surprised you from this report?

KD: This report provides a snapshot of current contraceptive status among women ages 15-49 based on data from the 2017-2019 National Survey of Family Growth (NSFG).  It describes contraceptive use and non-use during the month of interview and includes further detail on specific methods being used and reasons for non-use of contraception.  Differences in the most common methods currently used (female sterilization, oral contraceptive pill, long-acting reversible contraceptives (LARCs), and the male condom) are shown by age, Hispanic origin and race, and education.

It may not count as surprising, but some of the overall percentages for specific types of methods being used are interesting.  If you look at contraceptive status among all women (shown in Figure 2), 18.1% of all women aged 15-49 are relying on female sterilization, 14.0% on the oral contraceptive pill, 10.4% on LARCs, and 8.4% on male condoms.  Taken together that accounts for about half of women in this age range (about 37 million of the 72.7 million women aged 15-49).

Some of the differences in current contraceptive use, by age, Hispanic origin and race, and education may be surprising.  For example, there are differences by education in the use of female sterilization, the oral contraceptive pill, and LARCs, but there are no statistically significant differences seen by education in the use of male condoms, as reported by women.


Q: How did you obtain this data for this report?

KD: This report is based on data from the 6,141 women in the female respondent file of the 2017-2019 National Survey of Family Growth (NSFG).  The NSFG is a nationally representative sample of women and men ages 15-49 conducted using in-person interviews.  The 2017-2019 NSFG public-use data files are being released on the same day as this report.  Information about the survey, including how data were collected, as well as the downloadable data files and documentation, are available on the NSFG website here:  https://www.cdc.gov/nchs/nsfg/index.htm


Q: Is there any trend data for this report?

KD: This report does not include any information about trends in contraceptive use.  However, since it is an update of a report published in 2018 using NSFG data from 2015-2017, comparisons can be made between the estimates in this report and those from the 2018 report.  The 2018 report using 2015-2017 NSFG data is available on the NCHS webpage here:  https://www.cdc.gov/nchs/data/databriefs/db327-h.pdf


Q: Where can I find more NSFG data?

KD: All NSFG data files, including the 2017-2019 public-use files, released on the same day as this report’s publication, are available to download from the NSFG website here:

https://www.cdc.gov/nchs/nsfg/index.htm

The NSFG website also includes information about the survey, including how data were collected, as well as documentation about the survey methodology and how to analyze the data. Also on our website are reports published from data files released prior to this, which show statistics for contraceptive use and many other topics included in the NSFG.

Those previously published NSFG reports are available on this page:

https://www.cdc.gov/nchs/nsfg/nsfg_products.htm

This report is the first to be released with this data from 2017-2019.


Trends and Patterns in Menarche in the United States: 1995 through 2013-2017

September 10, 2020

Questions for Gladys Martinez, Health Statistician and Lead Author of “Trends and Patterns in Menarche in the United States: 1995 through 2013-2017.”

Q: Can you explain what menarche is?

GM: Menarche refers to the first menstrual period.


Q: Why did you decide to do a report on this topic?

GM: We decided to do a report on this topic because menarche is a biological milestone of the start of the period in which women can potentially get pregnant and because early menarche is associated with greater risk of health problems such as breast cancer, liver disease, etc.


Q: How did you obtain this data for this report?

GM: Data for this report came from a national sample of U.S. women aged 15-44 who were interviewed in person in 2013-2017.


Q: Is this the first report on age of first menstrual period?  Is there any trend data that goes back further than 1995?

GM:

This is the first report on age at menarche. We do not have published data before 1995, however there is data available on the mean age of menarche in previous National Survey of Family Growth reports. This is the first full report on age at menarche and the first to use this methodology to look at the probability of age at menarche by each age


Q: What is the take home message for this report?

GM: Age at menarche has decreased in the U.S. since 1995.  A higher proportion of young girls are experiencing menarche now than in earlier time periods.  Girls from higher socioeconomic status and those that lived with both parents by age 14 were less likely to experience menarche at an early age.  On average, the older the age at menarche, the older her age at first sexual intercourse.


Fact or Fiction – Is the average age at first menstrual period for American women is 12 years old?

September 10, 2020

Source: National Survey of Family Growth

https://www.cdc.gov/nchs/data/nhsr/nhsr146-508.pdf


Sexual Activity and Contraceptive Use Among Teenagers Aged 15-19 in the United States, 2015-2017

May 6, 2020

Questions for Gladys Martinez, Health Statistician and Lead Author of “Sexual Activity and Contraceptive Use Among Teenagers Aged 15-19 in the United States, 2015-2017.”

Q: Why does NCHS conduct studies on sexual activity and contraception?

GM: We conduct studies on sexual activity and contraceptive use to better understand the risk for sexually transmitted diseases, birth and pregnancy rates, and differences between groups in the U.S. reproductive age population.

For this report they are crucial for understanding differences in the risk of teen pregnancy and to put into context recent declines in the U.S. teen birth rate.


Q: Can you summarize how the data varied by sex and age groups?

GM: There has been a decline in the percentage of male and female teens who ever had sex from 1988 to 2017.  But the percentage of male teens who ever had sex continues to decline in most recent time period 2011-2015 to 2015-2017, but has remained the same for female teens.

Male and female had similar:

  • cumulative probabilities of having had sex at each age in their teen years
  • relationship between age at first sex and contraceptive use: teens with younger ages at first sexual intercourse were less likely to use a method of contraception

Q: Was there a specific finding in the data that surprised you from this report?

GM: For the first time since we have been collecting these data, the cumulative probabilities of having had sex by each age in the teen years were similar for young males and females.

Ever use of implant is 15% which is an increase from 2011-2015 when it was only 3%.


Q: How did you obtain this data for this report?

GM: Data for this report are from the 2015-2017 National Survey of Family Growth, a nationally representative in-person survey of men and women aged 15-49 in the United States.


Q: Do you have older data that is comparable beyond 2002?

GM: Yes, we have been tracking these data since the 1970s and the earliest published NSFG report shows data from 1988.


Demographic, Health Care, and Fertility-Related Characteristics of Adults Aged 18-44 Who Have Ever Been in Foster Care: United States, 2011-2017

January 22, 2020

Questions for Colleen Nugent, Health Statistician and Lead Author of “Demographic, Health Care, and Fertility-Related Characteristics of Adults Aged 18-44 Who Have Ever Been in Foster Care: United States, 2011-2017,”

Q: Why did you decide to do a report on adults who have ever been in foster care?

CN: The National Survey of Family Growth is one of the few U.S. nationally representative surveys that collects information on having ever been in foster care during childhood from adult respondents across the full reproductive age span.  Combining that with other content specific to the NSFG provides a rare opportunity to get nationally representative estimates on how outcomes related to health service access and use and fertility related milestones might differ between those who had ever been in foster care and those who had not.


Q: How did the data vary by adults who have ever been in foster care?

CN: Women and men who had been in foster care had lower levels of educational attainment, had higher percentages receiving public assistance in the past year, and were less likely to be currently working or attending school than adults who had never been in foster care.  Those who had been in foster care were less likely to have private health insurance, were more likely to experience time without health insurance in the past year, and were less likely to use a private doctor’s office as their usual place of care.  Adults ever in foster care also had higher probabilities of first sexual intercourse and first births at younger ages than those never in foster care.


Q: Was there a specific finding in the data that surprised you?

CN: Although those who had never been in foster care were more likely to have completed a bachelor’s degree or higher than those who had ever been in foster care, the rates of those completing some college were actually more similar for both groups.


Q: What were some of the limitations when interpreting the data?

CN: There are several limitations.  One is that we didn’t have information on what ages respondents were in foster care, how long ago they exited, and what types of foster care settings they were in—whether those were relative or nonrelative family foster homes, group homes, or institutional settings. Differences in outcomes could vary by the timing of foster care in a child’s development, and also by the type of foster care setting.  Another is that these analyses are bivariate and cross-sectional and cannot be used to assess causation. This means that outcomes may not be due solely to foster care itself and may be linked with characteristics of those entering foster care that preceded their experience in the system.


Q: Will you have an update to this report in the future?

CN: The number of respondents who have ever been in foster care is relatively small in our survey and we needed to combine data over several file releases to be able to produce reliable estimates. If we update this report in the future, it will require waiting for several more data releases that we can combine to have a large enough sample of respondents ever in foster care.