From: Can cell proliferation of umbilical cord blood cells reflect environmental exposures?
Environmental factorsa | Patients with proliferation in | p value | N = 346 (N = 286) | Geometric mean (95% CI) | Prevalence ratio | p value | |||
---|---|---|---|---|---|---|---|---|---|
Q1: 0.71–1.48 | Q2: 1.48–2.15 | Q3: 2.15–3.15 | Q4: 3.15–8.78 | ||||||
N = 86 | N = 87 | N = 86 | N = 87 | ||||||
(N = 69)a | (N = 74)a | (N = 70)a | (N = 73)a | ||||||
Type of a house, % (n) | |||||||||
Shack/tent | 21.7% (15) | 21.6% (16) | 28.6% (20) | 24.7% (18) | 0.147 | 69 (24.6) | 2.18 (1.95; 2.44) | 1.00 | |
One-story building | 42.0% (29) | 47.3% (35) | 41.4% (29) | 54.8% (40) | 133 (47.5) | 2.30 (2.10; 2.51) | 0.96 | 0.534 | |
Multi-story building | 33.3% (23) | 28.4% (21) | 28.6% (20) | 19.2% (14) | 78 (27.9) | 1.99 (1.78; 2.23) | 0.87 | 0.052 | |
Environmental factors reported as disturbing, % (n) | |||||||||
Dust | 87.0% (60) | 91.9% (68) | 87.1% (61) | 91.8% (67) | 0.627 | No: 30 (10.5) Yes: 256 (89.5) | 2.09 (1.76; 2.48) 2.18 (2.05; 2.32) | 1.00 1.05 | 0.634 |
Mosquitoes | 91.3% (63) | 86.5% (64) | 92.9% (65) | 87.7% (64) | 0.561 | No: 30 (10.5) Yes: 256 (89.5) | 2.38 (1.96; 2.88) 2.15 (2.02; 2.29) | 1.00 0.91 | 0.303 |
Noise | 10.1% (7) | 8.1% (6) | 2.9% (2) | 4.1% (3) | 0.247 | No: 268 (93.7) Yes: 18 (6.3) | 2.20 (2.08; 2.34) 1.78 (1.42; 2.24) | 1.00 0.81 | 0.082 |
Waste | 4.3% (3) | 10.8% (8) | 2.9% (2) | 9.6% (7) | 0.172 | No: 266 (93.0) Yes: 20 (7.0) | 2.16 (2.04; 2.30) 2.34 (1.82; 3.00) | 1.00 1.08 | 0.501 |
Transport (family cars) | 53.6% (37) | 44.6% (33) | 57.1% (40) | 67.1% (49) | 0.052 | No: 127 (44.4) Yes: 159 (55.6) | 2.10 (1.94; 2.28) 2.24 (2.06; 2.43) | 1.00 1.06 | 0.297 |
Type of heating, % (n) | |||||||||
Electric/AC/central heating | 34.8% (24) | 48.6% (36) | 37.1% (26) | 34.2% (25) | 0.245 | No: 175 (61.2) Yes: 111 (38.8) | 2.19 (2.03; 2.37) 2.14 (1.96; 2.34) | 1.00 0.98 | 0.703 |
Stove with chimney | 10.1% (7) | 9.5% (7) | 10.0% (7) | 6.8% (5) | No: 260 (90.9) Yes: 26 (9.1) | 2.19 (2.05; 2.33) 2.06 (1.76; 2.41) | 1.00 0.94 | 0.571 | |
Stove without chimney | 43.5% (30) | 25.7% (19) | 38.6% (27) | 46.6% (34) | No: 176 (61.5) Yes: 110 (38.5) | 2.15 (2.01; 2.30) 2.20 (1.99; 2.47) | 1.00 1.03 | 0.581 | |
Open fire | 7.2% (5) | 10.8% (8) | 10.0% (7) | 12.3% (9) | No: 257 (89.9) Yes: 29 (10.1) | 2.16 (2.03; 2.29) 2.14 (1.95; 2.80) | 1.00 1.08 | 0.422 | |
Cooking on open fire, % (n) | 76.8% (53) | 67.6% (50) | 74.3% (52) | 79.5% (58) | 0.39 | No: 73 (25.5) Yes: 213 (74.5) | 2.11 (1.89; 2.35) 2.20 (2.05; 2.36) | 1.00 1.04 | 0.525 |
Usage of pesticides, % (n) | 91.3% (63) | 86.5% (64) | 90.0% (63) | 86.3% (63) | 0.723 | No: 33 (11.5) Yes: 253 (88.5) | 2.42 (2.03; 2.89) 2.14 (2.02; 2.28) | 1.00 0.88 | 0.186 |
Using water containers, % (n) | 91.3% (63) | 86.5% (64) | 92.9% (65) | 93.2% (68) | 0.47 | No: 26 (9.1) Yes: 260 (90.9) | 2.18 (1.79; 2.66) 2.17 (2.04; 2.31) | 1.00 1.00 | 0.974 |
Type of water container, % (n) | |||||||||
Water tank | 26.1% (18) | 33.8% (25) | 28.6% (20) | 19.2% (14) | 0.109 | No: 209 (73.1) Yes: 77 (26.9) | 2.22 (2.06; 2.38) 2.07 (1.87; 2.28) | 1.00 0.93 | 0.927 |
Small containers | 60.9% (42) | 47.3% (35) | 57.1% (40) | 63.0% (46) | No: 123 (43.0) Yes: 163 (57.0) | 2.15 (1.98; 2.33) 2.19 (2.02; 2.38) | 1.00 1.02 | 0.728 | |
Barrel | 4.3% (3) | 5.4% (4) | 7.1% (5) | 11.0% (8) | No: 266 (93.0) Yes: 20 (7.0) | 2.16 (2.03; 2.29) 2.45 (1.98; 3.02) | 1.00 1.14 | 0.27 | |
Resides in direction of prevailing wind from IP, % (n)b | 14.0% (12) | 14.9% (13) | 23.3% (20) | 28.7% (25) | 0.046 | No: 276 (79.8) Yes: 70 (20.2) | 2.11 (1.99; 2.24) 2.44 (2.16; 2.74) | 1.00 1.16 | 0.03 |
Resides within 10 km from IPa, % (n)b | 7.2% (6) | 5.8% (5) | 9.5% (8) | 8.3% (7) | 0.827 | No: 311 (92.3) Yes: 26 (7.7) | 2.16 (2.05; 2.29) 2.24 (1.85; 2.71) | 1.00 1.03 | 0.741 |
Delivery in fall or winter, % (n)b,c | 68.6 (59) | 64.4 (56) | 75.6 (65) | 82.5 (71) | 0.056 | No: 95 (24.5) Yes: 251 (72.5) | 2.00 (1.83; 2.19) 2.24 (2.10; 2.39) | 1.00 1.12 | 0.06 |