Table 2.

Factors associated with HIV seropositivity among participants living in the informal artisanal small-scale gold mining site of Kokoyo in Mali (n=224)

Covariates	Marginal	Coefficient	95% CI		p  Value
	Effects* (dF/dX)		Lower	Upper
Intercept		−2.413	−3.716	−1.431	<0.001
Category of participant
Ref: Malian gold-diggers and tombolomas	Ref.	Ref.
Female sex workers	0.019	0.151	−1.048	1.134	0.780
Female non-sex workers	0.078	0.624	0.046	1.231	0.036
Non-Malian gold-diggers	−0.010	−0.057	−1.423	1.015	0.924
Age (years)†
Ref: 18–21	Ref.	Ref.
22–26	0.141	1.105	0.175	2.332	0.036
27–30	0.142	1.115	0.162	2.358	0.039
30+	0.161	1.268	0.271	2.548	0.022
Self-perceived health status
Good health status	−0.109	−0.862	−1.459	−0.307	0.003
Ref: Poor health status	Ref.	Ref.
Weekly earnings‡
Earnings ≤ median	0.036	0.282	−0.261	0.840	0.310
Ref: Earnings > median	Ref.	Ref.

*Is the change in the probability given the discrete change for dichotomous variables.

†Age categories’ cut-offs correspond to quartiles.

‡The median weekly earning is 14 500 Francs de la Communauté Financière en Afrique (FCFA) (US$25). This variable was used to account for the socioeconomic status of participants.