TABLE 2

Sound Breakdown for Recordings at 32 and 36 Weeks' PMA

Breakdown of Sounds32 wk (n = 35)36 wk (n = 33)Percent ChangeSignificance
Language+142.0001
    % of recording ± SD2 ± 25 ± 3
    Median %15
    % range0.2–8.60.5–13
Monitor+48.015
    % of recording ± SD26 ± 2138 ± 22
    Median %1933
    % range0–711–81
Silence−31.008
    % of recording ± SD39 ± 2327 ± 18
    Median %3927
    % range0–751–72
Noise−10.47
    % of recording ± SD33 ± 2230 ± 14
    Median %2527
    % range7–918–70