Table 2

Sexual frequency and condom use in partnerships reported by women aged 15 to 24 in KwaZulu-Natal, South Africa (2014–2015)

Age-similar (n=852)
%
Age-disparate (n=484)
%
P value
Sex frequency (past 12 months)*0.109
 Once4.42.1
 2–526.327.9
 6–1027.121.0
 11–2022.026.0
 >2020.323.1
Sex 10+ times (past 12 months)42490.057
Sex frequency and inconsistent condom use†0.266
 Condoms always used26.322.8
 once1.71.6
 2–518.320.9
 6–1019.514.5
 11–2018.321.7
 >2015.818.5
Sex 10+and inconsistent condom use34400.107
  • *Two of the response options in the survey instrument to capture frequency of sex included the response ‘10’: 6–10 and 10–20. Immediately after the commencement of fieldwork, interviewers were instructed to capture a response of ‘10’ in the ‘6–10’ category, so the original response category '10–20' reflected a coital frequency range between 11 and 20.

  • †Sex frequency and inconsistent condom use: Sex frequency in the previous 12 months categories (once, 2–5, 6–10, 11–20, >20) multiplied by a binary indicator of inconsistent condom use (0=consistent, 1=inconsistent). Therefore, 0 represents no risk (no unprotected sex) and 5 represents high risk (most frequent condomless sex).