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. 2022 Dec 28;21:397. doi: 10.1186/s12936-022-04391-4

Table 3.

Pre- and post-intervention surveys’ population characteristics

Pre-intervention survey (2015)
(N = 421) N (%)
Post-intervention survey (2019)
(N = 380) N (%)
Sex Female 124 (29.5) 102 (26.8)
Male 297 (70.6) 278 (73.2)
Age Median (IQR) 37 (30–45) 39 (31–48)
18–29 91 (21.6) 80 (21.1)
30–44 214 (50.8) 168 (44.2)
 ≥ 45 116 (27.6) 132 (34.7)
Country of birth Brazil 395 (93.8) 363 (95.5)
Other 26 (6.2) 17 (4.5)
Education level None or primary 202 (48.0) 130 (34.3)
Secondary or superior 219 (52.0) 249 (65.7)
Portuguese level None or low 13 (4.0) 4 (1.1)
Fluent 408 (96.9) 370 (98.9)
French medical coverage Yes 13 (3.1) 10 (2.6)
No 408 (96.9) 370 (97.4)
Time in gold mining Median (IQR) 10 (5–15) 10 (4–18)
 ≤ 10 years 249 (59.1) 205 (54.1)
 > 10 years 172 (40.9) 174 (45.9)
Main occupation Gold miner 206 (48.9) 230 (60.5)
Trader 92 (21.9) 59 (15.5)
Cook/Housekeeper/Sex worker 65 (15.4) 55 (14.5)
Quad or boat driver/Mechanic 48 (11.4) 23 (6.1)
Other 10 (2.4) 13 (3.4)
History of malaria

Never or < 4 attacks

 > 4 attacks

136 (32.3)

285 (67.7)

184 (48.8)

193 (51.2)