Table 3

Parameter estimates and 95% CIs from GEE models applied to hearing thresholds for the average of left and right ears measured in 290 subjects, with multiple imputation for missing thresholds

ParameterEstimate95% confidence limitsP
Intercept0.811−0.864, 2.4860.343
Smoothed baseline0.8370.797, 0.877<0.00001
Age [70, 80) y4.7662.436, 7.096<0.0001
Age [60, 70) y2.9491.140, 4.7570.0014
Age [50, 60) y0.912−0.733, 2.5580.277
Age [40, 50) y
DFMO/sulindac0.498−0.636, 1.6320.389
Placebo
Frequency at 8,000 Hz5.7594.039, 7.479<0.00001
Frequency at 6,000 Hz5.2823.480, 7.085<0.00001
Frequency at 4,000 Hz5.5984.310, 6.886<0.00001
Frequency at 3,000 Hz4.7123.503, 5.921<0.00001
Frequency at 2,000 Hz3.1842.402, 3.966<0.00001
Frequency at 1,000 Hz1.5980.933, 2.264<0.00001
Frequency at 500 Hz0.5330.311, 0.754<0.00001
Frequency at 250 Hz