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Table 3 Median (5 th , 95 th percentile) of the outcomes at baseline as well as according to each exposure scenario

From: An indoor air filtration study in homes of elderly: cardiovascular and respiratory effects of exposure to particulate matter

Biomarkers Baseline Sham filtration Active filtration
  Day 0 Day 2 Day 7 Day 14 Day 2 Day 7 Day 14
MVF 1.69 (1.07, 2.87) 1.74 (1.22, 2.60) 1.80 (1.30, 2.96) 1.72 (1.38, 2.56) 1.73 (1.20, 2.78) 1.69 (1.27, 2.63) 1.73 (1.32, 2.84)
Diastolic pressure, (mmHg) 80 (70, 90) 78 (60, 90) 80 (70, 90) 80 (60, 90) 80 (65, 90) 80 (60, 95) 77.5 (60, 90)
Systolic pressure, (mmHg) 130 (100, 150) 120 (90, 150) 120 (105, 140) 120 (100, 150) 125 (95, 140) 120 (95, 150) 120 (100, 140)
C-reactive protein (mg/L) 0.8 (0.2, 4.9) 0.9 (0.2, 3.6) 0.9 (0.2, 5.5) 0.9 (0.2, 4.5) 0.9 (0.1, 4.7) 1.0 (0.2, 5.1) 0.9 (0.2, 4.3)
Hemoglobin (mmol/L) 9.6 (7.8, 10.7) 9.3 (8.0, 11.2) 9.0 (7.9, 11.4) 9.1 (7.9, 10.8) 9.2 (8.0, 10.5) 9.1 (8.0, 10.3) 9.2 (7.6, 11.7)
Leukocytes (×109cells/L) 5.6 (4.1, 8.3) 5.9 (4.1, 7.6) 5.6 (3.8, 8.3) 5.1 (3.8, 8.8) 5.7 (4.0, 8.1) 5.5 (3.9, 8.9) 5.8 (3.8, 7.8)
Lymphocytes (×109cells/L) 1.9 (0.9, 3.5) 1.8 (0.9, 3.4) 2.0 (0.8, 3.5) 1.9 (1.0, 3.2) 2.1 (1.1, 3.0) 2.0 (1, 3.6) 1.9 (0.9, 3.0)
Monocytes (×109cells/L) 0.6 (0.4, 0.9) 0.6 (0.4, 0.8) 0.6 (0.3, 0.9) 0.6 (0.4, 0.9) 0.6 (0.4, 0.9) 0.6 (0.4, 0.9) 0.6 (0.4, 0.9)
Granulocytes (×109cells/L) 3.0 (2.0, 4.8) 3.2 (1.9, 4.9) 2.6 (1.8, 5.3) 2.9 (1.9, 5.5) 2.9 (1.7, 4.9) 2.7 (1.8, 5.4) 3.0 (1.7, 5.4)
CD31(%) 93.8 (84.6, 97.9) 92.9 (85.2, 98.0) 93.6 (85.2, 98.1) 91.5 (81.1, 96.9) 94.3 (84.0, 97.9) 93.1 (79.4, 97.9) 92.0 (78.1, 97.9)
CD62L(%) 60.0 (40.7, 86.0) 63.6 (42.7, 79.0) 62.9 (44.1, 76.8) 61.9 (39.3, 77.9) 62.4 (45.7, 75.3) 60.7 (43.5, 80.7) 62.4 (44.1, 81.4)
CD11b(%) 33.7 (4.9, 63.7) 39.6 (4.0, 69.9) 41.8 (6.2, 76.2) 37.8 (12.6, 65.8) 41.5 (8.3,70.0) 35.8 (10.0, 62.6) 37.6 (6.7, 73.5)
CD49d(%) 60.5 (30.0, 95.5) 72.7 (32.4, 94.8) 76.7 (33.8, 94.3) 74.9 (32.6, 95.1) 72.4 (45.3, 96.5) 73.3 (30.7, 96.5) 71.5 (39.2, 95)
FEV1/FVC 0.72 (0.42, 1.20) 0.66 (0.47, 1.17) 0.74 (0.38, 1.20) 0.72 (0.45, 1.37) 0.74 (0.38, 1.20) 0.73 (0.46, 1.43) 0.73 (0.43, 1.18)
CC16 (ng/ml) 4.2 (2.0, 8.8) 3.5 (2.0, 9.4) 3.6 (2.0, 9.3) 4.0 (2.0, 8.36) 3.6 (2.0, 8.6) 4.3 (2.0, 10.7) 3.9 (2.0, 10.2)
SPD (ng/mL) 100.6 (42.0, 285) 100.6 (46.1, 302.8) 99.0 (51.2, 279.2) 97.6 (46.2, 283.8) 103.1 (42.6, 306.1) 94.3 (43.3, 294.2) 98.7 (50.9, 338.7)
  1. MVF, microvascular function; CD, cluster of differentiation; FEV1, Forced expiratory volume 1 s (L); FVC, Forced vital capacity (L); CC16, Clara cell pneumoprotein 16; SPD, surface protein D.