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Table 2 Study design, outcome, statistical analysis, measures of association, and exposures independently associated with indigenous maternal syphilis or syphilis in indigenous adults, 1989–2020.

From: Maternal and congenital syphilis in Indigenous Peoples: a scoping review of the worldwide literature

Study identification

Study design

Outcome

Statistical model for analysis

Measures of association

Factors statistically associated (adjusted or crude#)

[28] Marx, 2020

Cross-Sectional

Syphilis in indigenous adults (men and women)

Logistic Regression

Prevalence OR

- None

[30] How, 1994

Cross-Sectional

Indigenous Maternal syphilis

Logistic Regression

Prevalence OR

- Marital status (single) #

[31] Benzaken,

2017

Cross-Sectional

Syphilis in indigenous adults (men and women)

Multiple Logistic Regression

Prevalence OR

- Sex (men)

- Age (older)

- High level of intrusion

- Moderate and high levels of population mobility

[32] Panaretto,

2006

Cross-Sectional

Indigenous maternal STI*

Multiple Logistic Regression

Prevalence OR

- Age < 20 years

- Hazardous/harmful use of alcohol

- Unwanted pregnancy

[33] Ormaeche,

2012

Cross-Sectional

Indigenous Maternal syphilis

Multiple Logistic Regression

Prevalence OR

- Partner with syphilis

  1. *STI (C. trachomatis, N. gonorrhea, T. vaginalis, and syphilis) in pregnant indigenous women
  2. # Crude association
  3. ¶Defined as presence of the timber industry, agro-business, mining activities, or areas of “garimpo”, or informal mining, inside or near the área