Correlation between severity of pulmonary embolism and obstructive sleep apnea using computed tomography pulmonary artery obstruction index and right ventricular to left ventricular diameter ratio as severity indices

Egyptian Journal of Radiology and Nuclear Medicine

Table 1 Patient baseline characteristics by PAOI

	PAOI < 15% (n = 36)	PAOI 15–50% (n = 48)	PAOI > 50% (n = 54)	P1	P2	P3
Age (years)	50.4 ± 8.4	49.5 ± 9.3	50.6 ± 7.8	0.543	0.234	0.321
Female/male [n (%)]	15(41.7%)/21(58.3%)	27(56.2%)/21(43.8%)	24(44.4%)/30(55.6%)	0.345	0.326	0.321
BMI (kg/m²)	27.22 ± 3.2	26.41 ± 4.1	29.11 ± 4.1	0.543	0.001	0.001
Neck circumference (cm)	39.4 ± 4.2	40.5 ± 3.7	40.8 ± 5.6	0.543	0.234	0.321
Waist circumference (cm)	104.4 ± 4.6	103.6 ± 5.2	104.3 ± 5.2	0.436	0.121	0.325
Smoking: n(%)	18(50%)	15(31.2%)	30(55.6%)	0.243	0.342	0.432
Hypertension: n(%)	24(66.7%)	15(31.2%)	27(50%)	0.001	0.001	0.000
Diabetes mellitus: n(%)	12(33.3)	18(37.5%)	18(33.3%)	0.342	0.032	0.043
Heart failure^a n(%)	9(25%)	15(31.2%)	12(22.2%)	0.002	0.432	0.342
Chronic pulmonary disease^b n(%)	15(41.7%)	18(37.5%)	18(33.3%)	0.001	0.012	0.321
Provoked PE: n (%)	0(0)	9(18.7%)	12(22.2%)	0.001	0.002	0.001
Recurrent VTE: n (%)	3(8.3%)	0(0)	9(16.7%)	0.000	0.001	0.002
Treatment
Thrombolytic, n (%)	0(0)	6(12.5)	33(61.1%)	0.001	0.002	0.000
Hospitalization duration (days)	5.2 ± 1.1	7.2 ± 1.1	10.3 ± 2.5	0.001	0.000	0.000
PESI (points)	96.2 ± 2.1	97.4 ± 1.4	104.4 ± 2.1	0.213	0.001	0.001
RV/LV diameter ratio	0.9 ± 0.1	1.1 ± 0.19	1.3 ± 0.15	0.014	0.001	0.000

PAOI pulmonary arterial obstruction index, BMI body mass index, VTE venous thromboembolism, PESI pulmonary embolism severity index, RV right ventricular, and LV = left ventricular
^aHeart failure = systolic or diastolic heart failure left or right-sided heart failure or a known left ventricular ejection fraction of < 40%
^bChronic pulmonary disease = chronic obstructive pulmonary disease, asthma, lung fibrosis, or bronchiectasis