Prevalence of Sexually Transmitted Infections (STIs) and STI Symptoms

 

Percentage of women and men who had an STI in the past 12 months, had an abnormal genital discharge in the past 12 months, had a genital sore or ulcer in the past 12 months, had an STI or symptoms of an STI in the past 12 months

 

Definition

 

1)      Percentage of women and men age 15-49 who had a sexually transmitted infection (STI) in the past 12 months.

2)      Percentage of women and men age 15-49 who had an abnormal (or bad smelling) genital discharge in the past 12 months.

3)      Percentage of women and men age 15-49 who had a genital sore or ulcer in the past 12 months.

4)      Percentage of women and men age 15-49 who had an STI or symptoms of an STI in the past 12 months.

 

Coverage:

Population base: Women and men age 15-49 who have ever had sexual intercourse (IR file, MR file)

Time period: 12 months preceding the survey

 

Numerators:

1)      Number of women (or men) age 15-49 who reported they had a disease they got through sexual contact in the past 12 months (women: v763a = 1; men: mv763a = 1)

2)      Number of women age 15-49 who report having a bad-smelling or abnormal genital discharge (v763c = 1), or number of men age 15-49 who report having an abnormal discharge from the penis in the past 12 months (mv763c = 1)

3)      Number of women (or men) age 15-49 who report they had a genital sore or ulcer in the past 12 months (women: v763b = 1; men: mv763b = 1)

4)      Number of women (or men) age 15-49 who report they had an STI, or a genital discharge, or a genital sore or ulcer in the past 12 months (women: v763a = 1 or v763b = 1 or v763c = 1; men: mv763a = 1 or mv763b = 1 or mv763c = 1)

 

Denominator: Number of women (or men) age 15-49 who ever had sexual intercourse (women: v525 ≠ 0,99; men: mv525 ≠ 0,99)


Variables: IR file, MR file.

v525

Age at first sex (women)

v763a

Had any STI in last 12 months (women)

v763b

Had genital sore/ulcer in last 12 months (women)

v763c

Had genital discharge in last 12 months (women)

v005

Woman’s individual sample weight

mv525

Age at first sex (men)

mv763a

Had any STI in last 12 months (men)

mv763b

Had genital sore/ulcer in last 12 months (men)

mv763c

Had genital discharge in last 12 months (men)

mv005

Man’s individual sample weight

 

Calculation

 

The numerator divided by the denominator, expressed as a percentage.

 

Respondents with an STI or symptoms of an STI are those with an affirmative response to any of the following: self-reported STI, abnormal genital discharge, or genital sore/ulcer.

 

Handling of Missing Values

 

Those with missing responses on the question about age at first sex are assumed not to have had sexual intercourse. Those with missing or “don’t know” responses on the questions about STI, genital discharge, or genital sore/ulcer are included in the denominator but excluded from the numerator for the corresponding indicator (assumed not to have an STI).

 

Notes and Considerations

 

All information is self-reported and does not reflect confirmed diagnosis of an STI. The question on self-reported STI is asked only of respondents to answer “yes” to a preceding question about knowledge of diseases that can be transmitted through sexual contact. Questions on genital discharge and genital sore/ulcer are asked of all respondents.

 

References

 

Kishor, S., and K. Johnson. "Reproductive health and domestic violence: Are the poorest women uniquely disadvantaged?." Demography 43, no. 2 (2006): 293-307.

 

Resources

 

DHS-8 Tabulation plan: Table 13.10

 

API Indicator IDs:

Women:

HA_STIS_W_STI, HA_STIS_W_DIS, HA_STIS_W_SOR, HA_STIS_W_AST

(API link, STATcompiler link)

 

Men:

HA_STIS_M_STI, HA_STIS_M_DIS, HA_STIS_M_SOR, HA_STIS_M_AST

(API link, STATcompiler link)