Table 3

 Abnormal transmission electron microscopy findings

AbnormalitiesWeeks from baseline
0361224Normal *
Values are shown as group mean (SD) percentage abnormality from infants with bronchiolitis over 24 weeks and from normal controls.
*Normal children age 0–6 years.
†Percentage ciliary losses in ciliated cells.
Cell types
    Unciliated cells65.2 (11.6), n = 1953.7 (19.1), n = 1930.9 (19.5), n = 1723.7 (10.5), n = 1316.6 (4.5), n = 921.0 (9.5), n = 16
    Mucous gland cells9.3 (5.9), n = 199.1 (4.4), n = 198.2 (4.3), n = 1710.7 (4.0), n = 1311.3 (4.8), n = 99.9 (4.8), n = 16
    Dead cells9.1 (5.4), n = 194.0 (6.6), n = 190.4 (1.8), n = 170.0 (0.0), n = 130.0 (0.0), n = 90.0 (0.0), n = 16
Epithelial cells
    % ciliary losses†97.8 (4.9), n = 1886.0 (13.6), n = 1757.9 (16.2), n = 1730.5 (17.0), n = 1317.5 (9.1), n = 924.1 (10.1), n = 16
    Projection85.4 (7.0), n = 1974.3 (18.2), n = 1946.4 (16.3), n = 1730.9 (16.6), n = 1316.0 (6.4), n = 923.2 (9.1), n = 16
    Cytoplasmic blebs47.6 (19.4), n = 1831.4 (17.3), n = 1926.0 (10.5), n = 1718.8 (9.2), n = 139.8 (3.1), n = 914.2 (6.3), n = 16
    Mitochondria59.7 (12.6), n = 1934.2 (14.7), n = 1921.6 (8.8), n = 1713.4 (10.9), n = 1310.6 (4.1), n = 911.9 (7.7), n = 16
    Epithelial integrity3.8 (0.9), n = 192.8 (0.5), n = 191.7 (0.5), n = 171.3 (0.4), n = 130.7 (0.4), n = 91.3 (0.5), n = 16
Detached single cells (live+dead)
    Ciliated cells9.3 (6.4), n = 196.2 (5.8), n = 192.3 (5.3), n = 171.4 (4.5), n = 130.0 (0.0), n = 90.0 (0.0), n = 16
    Unciliated cells14.9 (9.6), n = 196.2 (9.9), n = 190.7 (2.7), n = 170.4 (1.3), n = 130.0 (0.0), n = 90.0 (0.0), n = 16
Ciliary ultrastructures
    Dynein arms3.1 (5.2), n = 141.2 (2.1), n = 170.9 (1.2), n = 171.5 (1.5), n = 131.8 (1.0), n = 91.8 (3.2), n = 19
    Microtubule4.9 (4.3), n = 153.5 (3.7), n = 172.0 (1.4), n = 171.7 (1.6), n = 131.6 (1.1), n = 92.3 (2.1), n = 19