18F-FDG PET/CT predicts acute exacerbation in idiopathic pulmonary fibrosis after thoracic surgery

BMC Pulmonary Medicine

Table 2 Risk factors for postoperative acute exacerbation in IPF patients assessed using univariate logistic regression analysis

Characteristics	Odds ratio (95% confidence interval)	P value
Age	1.100 (0.921–1.314)	0.292
Type of surgery*	5.000 (0.537–46.528)	0.157
FVC	0.979 (0.912–1.052)	0.569
DLco	1.024 (0.972–1.078)	0.379
TLC	0.967 (0.888–1.053)	0.435
6MWD	1.006 (0.993–1.019)	0.398
6MWT, resting SpO₂	0.468 (0.246–1.006)	0.052
6MWT, lowest SpO₂	0.950 (0.803–1.124)	0.550
GAP index	0.814 (0.392–1.694)	0.583
CCI	1.094 (0.606–1.974)	0.765
SUV_max	3.699 (0.855–15.999)	0.080
SUV_mean	4.432 (0.714–27.496)	0.110
SUVR	33.044 (1.312–832.424)	0.034
SUV_meanTF	2.564 (0.707–9.294)	0.152
SUVR_TF	12.329 (1.060–143.431)	0.045

IPF, idiopathic pulmonary fibrosis; FVC, forced vital capacity; DLco, diffusing capacity of the lung for carbon monoxide; TLC, total lung capacity; 6MWD, six-minute walk distance; 6MWT, six-minute walk test; SpO₂, saturation of oxygen; GAP: gender, age, and physiology; CCI, Charlson comorbidity index; SUV, standardized uptake value; SUV_max, maximum standardized uptake value; SUV_mean, mean standardized uptake value; SUVR, standardized uptake value ratio; SUV_meanTF, tissue fraction-corrected mean standardized uptake; SUVR_TF, tissue fraction-corrected standardized. * lobectomy vs. others (wedge resection or segmentectomy)

ISSN: 1471-2466