Table 2 Pair-wise correlation between the prevalence of 7 sexually transmitted infections in all countries (a) and excluding countries from sub Saharan Africa (b) [Data from various sources]

HIV

–

HSV-2

.85***

–

Chlamydia

−.11

−.23

–

Gonorrhoea

.44***

.58***

−.69***

–

Syphilis

.50***

.67***

−.03

.15

–

Trichomoniasis

.75***

.83***

−.41***

.75***

.56***

–

BV

.65***

.73***

−.22

.43

.50*

.60**

HIV

–

HSV-2

.46*

–

Chlamydia

.34**

.27

–

Gonorrhoea

−.25

−.18

−.62***

–

Syphilis

.07

−.02

.37***

−.60***

–

Trichomoniasis

.10

.12

−.13

.48***

−.23

–

BV

.29

.29

−.05

.05

.26

.15