Table 1.
The basic clinical information of OSAS patients and control subjects.
| Characteristics | OSAS | Controls | P value |
|---|---|---|---|
| No. of subjects | 15 | 9 | — |
| Age (years) | 47.0 ± 9.5a | 40.2 ± 9.4a | 0.103 |
| Sex (male/female) | 13/2 | 6/3 | 0.326 |
| BMId (kg/m2) | 27.0 ± 3.8a | 28.5 ± 6.4a | 0.453 |
| AHIc (events/h) | 54.4 ± 19.0a | 2.7 ± 1.2a | <0.001 |
| Mean SaO2 (%) | 93 (91–94)b | 96 (95–97)b | 0.007 |
| Minimum SaO2 (%) | 74 (67–81)b | 93 (91–94)b | <0.001 |
| ODIe (events/h) | 58.0 (47.0–69.1)b | 3.4 (1.7–5.2)b | <0.001 |
aValues are presented as means ± SD. bValues are presented as mean (with 95% confidence intervals) as appropriate. cAHI = apnea-hypopnea index. dBMI = body mass index. eODI = oxygen desaturation index. The age and BHI and AHI indexes were compared by independent-samples t-test, and the sex index was compared by the chi-square test; the other indexes of mean SaO2, minimum SaO2, and ODI indexes were compared by the Wilcoxon rank-sum test, respectively, using SPSS software.