|Regression||Independent Variable||Coefficient||95% Confidence Interval|
|1||Total number of apneas and hypopneas||0.0020||[−0.0064–0.0104]|
|2||Number of central apneas||−0.0014||[−0.0185–0.0156]|
|3||Number of obstructive apneas||0.0037||[−0.0094–0.0168]|
|4||Number of arousals||−0.0033||[−0.0138–0.0072]|
|5||Percent with O2saturation <90%||0.0096||[0.0015–0.0177]⁎|
|6||Average difference between peak and nadir of O2saturation||0.0169||[−0.0100–0.0439]|
Each row reports the result of a separate regression of the logarithm of brain (B-type) natriuretic peptide (BNP) on the independent variable specified. Standard errors are clustered by patient-night, of which there were 28 distinct observations. Every regression also includes individual fixed effects and a linear time trend. The sample size is n = 643 for each regression.
↵⁎ p = 0.02.