Skip to main content

Table 4 Covariates balance between participants and non-participants in Malakit before and after PS estimation

From: Impact of Malakit intervention on perceptions, knowledge, attitudes, and practices related to malaria among workers in clandestine gold mines in French Guiana: results of multicentric cross-sectional surveys over time

Covariates

Initial (N=354)

Propensity score matching (N=214)

Inverse probability of treatment weighting (N=354)

 

Not included in Malakit (N=247)

Included in

Malakit (N=107)

|SMD|

Not included in Malakit (N=107)

Included in Malakit (N=107)

|SMD|

Not included in Malakit (N=247)

Included in Malakit (N=107)

|SMD|

Male (%)

78.1

67.3

0.244**

66.4

67.3

0.020

74.6

74.2

0.009

Age (years)

41.2

36.9

0.403**

36.6

36.9

0.035

39.9

40.0

0.012

None or primary education level (%)

39.7

25.2

0.311**

23.4

25.2

0.043

35.3

35.1

0.005

Not fluent in Portuguese (%)

1.2

0.9

0.027

1.9

0.9

0.097

1.1

1.2

0.006

No French health coverage (%)

98.0

96.3

0.102*

98.1

96.3

0.099

97.4

97.3

0.005

Time worked in gold mining (years)

13.7

10.7

0.292**

10.3

10.7

0.047

12.9

13.0

0.012

<4 malaria episodes  experienced (%)

46.6

49.5

0.059

52.3

49.5

0.056

47.4

46.7

0.015

  1. *|Standardized mean difference| between 0.1 and 0.2
  2. **|SMD|> 0.2