Prevalence, characteristics, and respiratory arousal threshold of positional obstructive sleep apnea in China: a large scale study from Shanghai Sleep Health Study cohort

Table 4 Adjusted ORs and 95% CIs for the Association Between Predictors and POSA according to CC and APOC

Predictors (n = 5748)	OR (95% CI) of CC		OR (95% CI) of APOC
Predictors (n = 5748)	Univariate regression analyses	Multivariate regression analyses	Univariate regression analyses	Multivariate regression analyses
Age	1.006 (1.002–1.011)*		1.006 (1.005–1.007)*
Women	1.189 (1.030–1.372)*		1.181 (1.151–1.211)***
BMI	0.936 (0.923–0.950)***		0.918 (0.916–0.920)***
NC	0.929 (0.915–0.944)***		0.918 (0.915–0.920)***
WC	0.971 (0.966–0.977)***		0.964 (0.964–0.965)***
HC	0.969 (0.962–0.976)***		0.964 (0.963–0.966)***
ESS	0.963 (0.954–0.972)***		0.954 (0.952–0.955)***
AHI	0.965 (0.962–0.968)***	0.967 (0.960–0.973)***	0.957 (0.956–0.957)***	0.968 (0.961–0.974)***
ODI	0.969 (0.967–0.972)***		0.964 (0.964–0.965)***
Mean SaO2	1.269 (1.239–1.299)***	1.099 (1.063–1.136)***	1.259 (1.254–1.263)***	1.086 (1.053–1.120)***
LSaO2	1.055 (1.050–1.061)***		1.060 (1.059–1.061)***

OR odds ratio, CI confidence interval, POSA positional obstructive sleep apnea, CC Cartwright Classification, APOC Amsterdam Positional Obstructive Sleep Apnea Classification, BMI body mass index; NC neck circumference, WC waist circumference, HC hip circumference, ESS Epworth Sleepiness Scale; AHI, apnea hypopnea index; ODI, oxygen desaturation index, SaO2 oxygen saturation, LSaO2 lowest oxygen saturation. * indicated p-value < 0.05, ** indicated p-value < 0.05 and *** indicated p-value < 0.001 for the logistic regression

ISSN: 1465-993X