Australian Regenerative Medicine Institute

The Relation of Sleep Complaints to Respiratory Symptoms in a General Population – Results

The Relation of Sleep Complaints to Respiratory Symptoms in a General Population - ResultsIn our first set of analyses, we examined the rates of DIMS and EDS when the subjects were grouped according to their respiratory symptoms. For purposes of comparisons among subjects, we formed three exclusive groups: subjects with no respiratory symptoms; subjects with one symptom (either cough or sputum production or wheezing at least apart from colds); and subjects with both cough or sputum and wheezing apart from colds. Among the subjects with no respiratory symptoms, as shown in Table 1, 28.0 percent reported DIMS and 9.4 percent reported EDS. Subjects with one symptom had a rate of DIMS of 39.1 percent and a rate of EDS of 12.4 percent. Subjects with both symptoms had a rate of DIMS of 52.8 percent and a rate of EDS of 22.8 percent. These rates were significantly different (trend %2 by M-H = 73.9, p < 0.001 for DIMS; trend %2 by M-H = 37.9, p < 0.0001 for EDS). Reading here

As shown in Table 2, analysis of the influence of snoring rate of sleep complaints demonstrated that the more frequently subjects snored, the more likely they were to complain of both DIMS and EDS (trend %2 by M-H = 14.6, p < 0.01 for DIMS; trend t by M-H = 10.9, p < 0.05 for EDS). And as shown in Table 2, we also found that the rate of DIMS rose significantly in relation to the obesity index but EDS did not (trend t by M-H = 11.6, p < 0.0001 for DIMS; trend %2 by M-H = 3.6,.05 < p < 0.1 for EDS).
In Table 3, we arranged the subjects into tfrree groups according to their FEVj/FVC ratios. Although the complaint of EDS was higher in subjects with a ratio less than 60 percent than in the other two groups, neither the frequency of DIMS nor EDS was signifiThe above analyses suggested that respiratory symptoms as well as a history of snoring and obesity heightened the risk of sleep complaints in our subjects while the degree of airways obstruction did not. To further examine relationships among the above-mentioned variables, we performed logistic regression analyses. For these analyses, we grouped all subjects with asthma, chronic bronchitis, or emphysema into a single disease group (AOD), as in our previous report.

Table 1—Prevalence of Sleep Complaints by Respiratory Symptoms

RespiratorySymptoms No. of Subjects Percent of Subjects With Sleep Disturbancet
None 1,358 28.0 9.4
1 443 39.1 12.4
2 299 52.8 22.8

Table 2—Prevalence of Sleep Complaints by Snoring and Obesity

No. of Subjects Percent of Subjects With Sleep Disturbance
Snoring History
Rare 702 28.1 8.4
Some or most nights 462 35.9 13.9
Every night 100 40.0 18.9
Body mass index percentile f
Lowest 25% 511 30.5 11.2
Middle 50% 1,039 32.1 10.5
Highest 25% 492 40.7 15.2

Table 3—Prevalence of Sleep Complaints Among Subjects Grouped by Percent Predicted Pulmonary Function

Percent Predicted Pulmonary Function No. of Subjects Percent of Subjects With Sleep Disturbance*
<60 79 35.9 19.5
60-80 696 35.3 12.3
>80 583 34.3 11.3

Category: Respiratory Symptoms

Tags: airways obstruction, asthma, chronic bronchitis, respiratory symptoms