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Ever received HPV vaccine

Codes and Frequencies

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HPVACHAD indicates whether a sample person ever received the HPV vaccine, and, for negative responses, identifies those who volunteered the information that their doctor refused to approve vaccination when asked. Those who answered "Yes" were asked how many HPV shots they had received (HPVACNO).

The CDC's recommendations for HPV vaccination have changed over time.


The CDC first recommended the HPV vaccine for girls in 2006. According to the CDC website on HPV, "The HPV vaccine is routinely recommended for 11 and 12 year-old girls. The vaccine series can be started at 9 years of age. Catch-up vaccination is recommended for 13 through 26 year-old females who have not yet received the vaccine series."

In October 2009, the FDA approved the vaccine Gardasil for use by males. In February 2012, the CDC formally recommended the use of the vaccine by males.

As of 2012, the CDC recommends the following on their website:

HPV vaccines are recommended for all teen girls and women through age 26, who did not get all three does of the vaccine when they were younger.

HPV vaccine is recommended for all teen boys and men through age 21, who did not get all three does of the vaccine when they were younger. The vaccine is also recommended for gay and bisexual men (or any man who has sex with men) and men with compromised immune systems (including HIV) through age 26, if they did not get fully vaccinated when they were younger. All men may get the vaccine through age 26....

The HPV vaccine is administered in 3 intra-muscular injections given over 6 months.

Related Variables

Persons who did not respond affirmatively to HPVACHAD were asked a series of questions about their interest in the vaccine and the barriers (such as cost) to vaccination.


Specifically, these questions (and their associated IPUMS NHIS questions) are:

(2008 children and adults; 2009 adults only)

(2008 adults only)

(2008 children only)

  • Main reason would not receive HPV vaccine (HPVACNOWHY)

(2008 children and adults)

  • Would get HPV vaccine if cost 350 to 500 dollars (HPVACGET500)

(2008 children and adults)

  • Would SC get HPV vaccine if it were free/at a lower cost (HPVACGETFRE)

(2008 children and adults)

For a full list of HPV-related variables and information, including definitions, see (HPVHEAR).


The universe for HPVACHAD has changed substantially over time.

For 2008 and 2009, HPVACHAD is only available for some sample females. Beginning in 2010, the variable is available for both sample females and sample males.

Additionally, sample children have moved in and out of the universe for HPVACHAD over time.


  • 2008: Female sample adults age 18-64 and female sample children age 8-17.
  • 2009: Female sample adults age 18-64.
  • 2010: Sample adults age 18-64 and sample children age 8-17.
  • 2011-2018: Sample adults age 18-64.


  • 2008-2018