Table 2 Aspects related to the level of exposure on the general population according to the place of residence during the eruption (western region/eastern region)
TOTAL (N = 857) | WESTERN REGION(N = 662) | EASTERN REGION(N = 195) | p | |
|---|---|---|---|---|
n (%) | n (%) | n (%) | ||
Need for evacuation (usual residence) | 132 (15.4) | 116 (17.5) | 16 (8.2) | 0.002 |
Return to usual residence | 46 (34.8) | 38 (32.8) | 8 (50.0) | 0.175 |
Time to return (days)* | 104 (53.5–128) | 104 (9.3-129.5) | 107.5 (80.5–122.0) | 0.839 |
Distance (usual residence) to volcano (km)* | 7.1 (6.1–9.3) | 6.7 (4.9–7.3) | 10.9 (9.3–12.7) | < 0.001 |
Altitude in meters (usual residence)* | 354.3 (205.4-543.4) | 358.8 (320.6-632.8) | 269.1 (78.8-415.6) | < 0.001 |
Volcanic ash cleaning | 750 (87.5) | 590 (89.1) | 160 (82.1) | 0.009 |
Cleaning location | < 0.001 | |||
Outdoor | 171 (22.8) | 107 (18.1) | 64 (40.0) | |
Indoor | 24 (3.2) | 17 (2.9) | 7 (4.4) | |
Both | 555 (74.0) | 466 (79,0) | 89 (55.6) | |
Cleaning tools | 0.117 | |||
High (particle projection) | 673 (89.7) | 535 (90.7) | 138 (86.3) | |
Moderate (particle projection) | 9 (1.2) | 8 (1.4) | 1 (0.6) | |
Low (particle projection) | 68 (9.1) | 47 (8.0) | 21 (13.1) | |
Cleaning frecuency | 0.004 | |||
>=1 once a day | 368 (49.9) | 302 (52.2) | 66 (41.8) | |
1–6 times per week | 335 (45.5) | 257 (44.4) | 78 (49.4) | |
Every 15 days/monthly | 34 (4.6) | 20 (3.5) | 14 (8.9) | |
Daily hours spent in outdoor environments | ||||
No or < 1 h | 137 (16.1) | 99 (15.0) | 38 (19.8) | 0.010 |
1–5 h | 384 (45.0) | 287 (43.4) | 97 (50.5) | |
> 5 h | 332 (38.9) | 275 (41.6) | 57 (29.7) | |
Frequency of mask use outdoors | ||||
Always | 724 (85.0) | 554 (84.2) | 170 (87.6) | 0.558 |
Mostly | 87 (10.2) | 72 (10.9) | 15 (7.7) | |
Rarely | 30 (3.5) | 24 (3.6) | 6 (3.1) | |
Never | 11 (1.3) | 8 (1.2) | 3 (1.5) | |
Mask type | ||||
Surgical/Hygienic face mask | 117 (14.0) | 87 (13.4) | 30 (15.9) | 0.875 |
FFP2 | 592 (70.6) | 458 (70.6) | 134 (70.9) | |
FFP3 | 20 (2.4) | 17 (2.6) | 3 (1.6) | |
Cloth Masks | 2 (0.2) | 2 (0.3) | 0 (0.0) | |
Surgical/FFP2 face mask | 103 (12.3) | 82 (12.6) | 21 (11.1) | |
Particulate filter mask | 4 (0.5) | 3 (0.5) | 1 (0.5) | |
Frequency of protective eyeglasses use outdoors | ||||
Always | 205 (24.0) | 167 (25.4) | 38 (19.5) | 0.223 |
Mostly | 218 (25.6) | 170 (25.8) | 48 (24.6) | |
Rarely | 163 (19.1) | 125 (19.0) | 38 (19.5) | |
Never | 267 (31.3) | 196 (29.8) | 71 (36.4) |