Key Statistics from the National Survey of Family Growth

 

N Listing

• Natural family planning
• Nonbiological children - See Adoption and nonbiological parenting
• Nonmarital childbearing - See Births (mothers) and Births (fathers)
• Nonvoluntary sexual intercourse
• Norplant^Tm implant - See Implant contraceptives
• Number of children ever born - See Births (mothers) and Births (fathers)
• Number of sexual partners in the past 12 months
• Number of sexual partners in lifetime

 

Natural family planning

NOTE: In "Natural family planning or safe period by temperature or cervical mucus test," a woman checks the temperature and consistency of her cervical mucus to determine her fertile days and abstains from intercourse on those fertile days.

• Natural family planning use among women 15-44 years of age who have ever had intercourse, 2002:
  • Percent of women who have ever used natural family planning: 3.5%
  • Percent of women currently using natural family planning: 0.2%

  Source: Series 23, No. 25, Tables 53 and 56 [PDF - 4.7 MB]

 

Nonvoluntary sexual intercourse

• Of females 18-24 years of age in 2002 who have had sex before age 20, percent whose first intercourse was not voluntary: 9.6%
  (Based on the question: "Would you say then that this first vaginal intercourse was voluntary or not voluntary, that is, did you choose to have sex of your own free will or not?")

  Source: Series 23, No. 24, Table 7 [PDF - 2.2 MB]

 

Number of sexual partners in the past 12 months

• Percent of all women 15-44 years of age who have had three or more male partners in the last 12 months, 2002: 6.8%

  Source: Advance Data No. 362, Table 2 [PDF - 1.2 MB]

• Percent of all men 15-44 years of age who have had three or more female partners in the last 12 months, 2002: 10.4%

  Source: Advance Data No. 362, Table 1 [PDF - 1.2 MB]

NOTE: Includes partners with whom respondent had any type of sexual contact (anal sex, oral sex, or vaginal intercourse)

 

Number of sexual partners in lifetime

• Median number of female sexual partners in lifetime, for men 25-44 years of age, 2002: 6.7
  Percent of men 25-44 years of age who have had 15 or more female sexual partners, 2002: 29.2%
  

  Source: Advance Data No. 362, Table 10 [PDF - 1.2 MB]

• Median number of male sexual partners in lifetime, for women 25-44 years of age, 2002: 3.8
  Percent of women 25-44 years of age who have had 15 or more male sexual partners, 2002: 11.4%

  Source: Advance Data No. 362, Table 11 [PDF - 1.2 MB]

NOTE: Includes partners with whom respondent had any type of sexual contact (anal, oral, or vaginal intercourse)