| DUQ230 | During the past 30 days, on how many days did you use marijuana or cannabis? | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| DUQ250 | The following questions are about cocaine, including all the different forms of cocaine such as powder, 'crack', 'free base', and coca paste. Have you ever, even once, used cocaine, in any form? | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| DUQ290 | The following questions are about heroin. Have you ever, even once, used heroin? | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| DUQ330 | The following questions are about methamphetamine, also known as crank, crystal, ice or speed. Have you ever, even once, used methamphetamine? | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| DUQ370 | The following questions are about the different ways that certain drugs can be used. Have you ever, even once, used a needle to inject a drug not prescribed by a doctor? | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | DUQ_L_R | Drug Use | 2021 | 2023 | Questionnaire | RDC Only |
| ALD020 | During your life, on how many days have you had at least one drink of alcohol? | ALQY_L_R | Alcohol Use - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| ALD030 | During the past 30 days, on how many days did you have at least one drink of alcohol? | ALQY_L_R | Alcohol Use - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| ALD040 | During the past 30 days, on how many days did you have {DISPLAY NUMBER} or more drinks of alcohol in a row, that is, within a couple of hours? | ALQY_L_R | Alcohol Use - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| ALQ010 | How old were you when you had your first drink of alcohol, other than a few sips? | ALQY_L_R | Alcohol Use - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | ALQY_L_R | Alcohol Use - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ010 | Over the last 2 weeks, how often have you been bothered by the following problems: little interest or pleasure in doing things? Would you say... | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ020 | [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling down, depressed, or hopeless? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ030 | [Over the last 2 weeks, how often have you been bothered by the following problems:] trouble falling or staying asleep, or sleeping too much? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ040 | [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling tired or having little energy? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ050 | [Over the last 2 weeks, how often have you been bothered by the following problems:] poor appetite or overeating? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ060 | [Over the last 2 weeks, how often have you been bothered by the following problems:] feeling bad about yourself - or that you are a failure or have let yourself or your family down? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ070 | [Over the last 2 weeks, how often have you been bothered by the following problems:] trouble concentrating on things, such as reading the newspaper or watching TV? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ080 | [Over the last 2 weeks, how often have you been bothered by the following problems:] moving or speaking so slowly that other people could have noticed? Or the opposite - being so fidgety or restless that you have been moving around a lot more than usual? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ090 | [Over the last 2 weeks, how often have you been bothered by the following problems:] Thoughts that you would be better off dead or of hurting yourself in some way? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| DPQ100 | How difficult have these problems made it for you to do your work, take care of things at home, or get along with people? | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | DPQY_L_R | Mental Health - Depression Screener - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| RHD043 | What is the reason that {you have/SP has} not had a period in the past 12 months? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHD143 | {Are you/Is SP} pregnant now? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHD280 | {Have you/Has SP} had a hysterectomy that is, surgery to remove {your/her} uterus or womb? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ010 | The next series of questions are about {your/SP's} reproductive history. I will begin by asking about {your/SP's} periods or menstrual cycles. How old {were you/was SP} when {you/SP} had {your/her} first menstrual period? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ031 | {Have you/Has SP} had at least one menstrual period in the past 12 months? (Please do not include bleedings caused by medical conditions, hormone therapy, or surgeries.) | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ060 | About how old {were you/was SP} when {you/SP} had {your/her} last menstrual period? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ078 | {Have you/Has SP} ever been treated for an infection in {your/her} fallopian tubes, uterus or ovaries, also called a pelvic infection, pelvic inflammatory disease, or PID? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ131 | The next questions are about {your/SP's} pregnancy history. {Have you/Has SP ever been pregnant? Please include (current pregnancy,) live births, miscarriages, stillbirths, tubal pregnancies and abortions. | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ167 | How many deliveries {have you/has SP} had? (Please count all vaginal and Cesarean deliveries and count stillbirths as well as live births.) | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ200 | {Are you/Is SP} now breast feeding a child? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ305 | {Have you/Has SP} had both of {your/her} ovaries removed (either when {you/she} had {your/her} uterus removed or at another time)? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| RHQ332 | How old {were you/was SP} when {you/she} had {your/her} ovaries removed or last ovary removed if removed at different times? | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | RHQ_L_R | Reproductive Health - Women 12 Years and Older | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXD021 | Ever had vaginal, anal, or oral sex. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXD101 | In your lifetime, with how many men have you had any kind of sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXD171 | In your lifetime, with how many women have you had any kind of sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXD450 | In the past 12 months, with how many men have you had any kind of sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXD510 | In the past 12 months, with how many women have you had any kind of sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ130 | In your lifetime with how many women have you had sex? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ260 | Has a doctor or other health care professional ever told you that you had genital herpes? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ265 | Has a doctor or other health care professional ever told you that you had genital warts? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ295 | Which of the following best represents how you think of yourself? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ296 | Which of the following best represents how you think of yourself? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ410 | In your lifetime, with how many men have you had anal or oral sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ490 | In the past 12 months, with how many women have you had sex? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ550 | In the past 12 months, with how many men have you had anal or oral sex? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ648 | In the past 12 months, did you have any kind of sex with a person that you never had sex with before? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ700 | Have you ever had vaginal sex, also called sexual intercourse, with a man? This means a man's penis in your vagina. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ703 | Have you ever performed oral sex on a man? This means putting your mouth on a man's penis or genitals. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ706 | Have you ever had anal sex? This means contact between a man's penis and your anus or butt. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ709 | Have you ever had any kind of sex with a woman? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ800 | Have you ever had vaginal sex, also called sexual intercourse, with a woman? This means your penis in a woman's vagina. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ803 | Have you ever performed oral sex on a woman? This means putting your mouth on a woman's vagina or genitals. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ806 | Have you ever had anal sex with a woman? Anal sex means contact between your penis and a woman's anus or butt. | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ809 | Have you ever had any kind of sex with a man, including oral or anal? | SXQ_L_R | Sexual Behavior - Adult | 2021 | 2023 | Questionnaire | RDC Only |
| SEQN | Respondent sequence number. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXD021 | Ever had vaginal, anal, or oral sex. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXD101 | In your lifetime, with how many men have you had any kind of sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXD171 | In your lifetime, with how many women have you had any kind of sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXD450 | In the past 12 months, with how many men have you had any kind of sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXD510 | In the past 12 months, with how many women have you had any kind of sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ130 | In your lifetime with how many women have you had sex? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ260 | Has a doctor or other health care professional ever told you that you had genital herpes? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ265 | Has a doctor or other health care professional ever told you that you had genital warts? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ410 | In your lifetime, with how many men have you had anal or oral sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ490 | In the past 12 months, with how many women have you had sex? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ550 | In the past 12 months, with how many men have you had anal or oral sex? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ648 | In the past 12 months, did you have any kind of sex with a person that you never had sex with before? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ700 | Have you ever had vaginal sex, also called sexual intercourse, with a man? This means a man's penis in your vagina. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ703 | Have you ever performed oral sex on a man? This means putting your mouth on a man's penis or genitals. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ706 | Have you ever had anal sex? This means contact between a man's penis and your anus or butt. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ709 | Have you ever had any kind of sex with a woman? By sex, we mean sexual contact with another woman's vagina or genitals. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ800 | Have you ever had vaginal sex, also called sexual intercourse, with a woman? This means your penis in a woman's vagina. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ803 | Have you ever performed oral sex on a woman? This means putting your mouth on a woman's vagina or genitals. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ806 | Have you ever had anal sex with a woman? Anal sex means contact between your penis and a woman's anus or butt. | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |
| SXQ809 | Have you ever had any kind of sex with a man, including oral or anal? | SXQY_L_R | Sexual Behavior - Youth | 2021 | 2023 | Questionnaire | RDC Only |