In: Snoring13 Aug 2014
Snoring Sounding Intensity During Sleep and Clinical Factors
The clinical information regarding the chief complaint was available for 682 of the study participants (Table 1). Table 4 shows the sound intensity levels for three chief complaint categories: snoring, hypersomnolence, and breathing stoppage. Patients with breathing stoppage had significantly higher snoring sound intensity levels than patients with snoring or hypersomnolence (p < 0.001). Patients with snoring or hypersomnolence had similar Leq, L1, and L5 values (p > 0.283).
A complete clinical history record of the duration of snoring symptoms was available for 245 patients (Table 1). Patients with a recent onset or a snoring duration of only a few years had significantly lower average Leq values than those who had snored for many years, respectively: 45.5 (95% CI, 44.0 to 47.0) vs 48.2 (95% CI, 46.8 to 49.7) dBA (p < 0.02), Similar results were obtained for patients with a positive or negative clinical history of breathing stoppage so purchase antibiotics online. A complete clinical history record of breathing stoppage was available for 305 patients. Patients (n = 31) with a documented absent history of breathing stoppage during sleep had significantly lower average Leq values than those (n = 290) with a known history of breathing stoppage, respectively: 44.3 (95% CI, 41.2 to 47.4) vs 47.7 (95% CI, 46.7 to 48.6) dBA (p = 0.028).
A complete clinical history record of the presence or absence of systemic hypertension was available for 199 patients (Table 1). Patients with a history of systemic hypertension had significantly higher snoring sound intensity levels than did patients without a history of hypertension (Table 7). However, the relationships between hypertension and snoring sound intensity levels were lost after adjusting for effects of gender and obese status (p > 0.251).
Some patients received a visual investigation of the nasal (n = 249) and oropharyngeal (n = 319) regions by their referring physicians. Based on this investigation, patients with “narrow” nasal or oropharyngeal dimensions were put into one group, and patients with “normal” dimensions were put into another group. Patients with a narrow oropharynx had significantly higher Leq, L1, and L5 values than patients with a normal oropharynx. However, there was no statistical difference in snoring sound intensity levels between patients having narrow or normal nasal chambers (Table 8).
Table 7— Sound Intensity Measures and Systemic Hypertension
|Sound Intensity Measure||Systemic Hypertension||p Value|
|Leq, dBA||49.6 (48.0-51.1)||46.9 (45.5-48.3)||0.018|
|No. of patients||96||103|
|L1, dBA||60.1 (58.8-61.4)||57.2 (55.8-58.5)||0.005|
|No. of patients||95||103|
|L5, dBA||53.3 (52.0-54.6)||51.3 (50.0-52.6)||0.022|
|No. of patients||94||100|
|L10, dBA||50.1 (48.8-51.4)||48.6 (47.3-49.9)||0.074|
|No. of patients||84||93|
Table 8—The Relationship Between Snoring Sound Intensity Measures and Anatomical Characteristics of Nasal Chambers and Oropharynx at Visual Inspection
|Sound Intensity Measure||Nasal Chambers||Oropharynx|
|Narrow||Normal||p Value||Narrow||Normal||p Value|
|Leq, dBA||48.2 (46.4-50.0)||46.2 (45.0-47.4)||0.103||47.6 (46.6-48.7)||44.9 (43.2-46.7)||0.016|
|No. of patients||107||142||234||85|
|L1, dBA||57.8 (56.5-59.2)||57.1 (55.9-58.2)||0.377||57.9 (57.0-58.8)||55.7(54.1-57.3)||0.017|
|No. of patients||106||142||233||85|
|L5, dBA||51.9 (50.6-53.2)||51.1 (50.0-52.2)||0.313||51.6 (50.7-52.5)||50.0 (48.4-51.6)||0.058|
|No. of patients||104||135||228||78|
|L10, dBA||49.4 (48.1-50.6)||48.3 (47.2-49.4)||0.146||48.8 (48.0-49.7)||47.8 (46.3-49.4)||0.183|
|No. of patients||96||126||213||68|
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