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

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

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
SUVmax 3.699 (0.855–15.999) 0.080
SUVmean 4.432 (0.714–27.496) 0.110
SUVR 33.044 (1.312–832.424) 0.034
SUVmeanTF 2.564 (0.707–9.294) 0.152
SUVRTF 12.329 (1.060–143.431) 0.045
  1. 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; SUVmax, maximum standardized uptake value; SUVmean, mean standardized uptake value; SUVR, standardized uptake value ratio; SUVmeanTF, tissue fraction-corrected mean standardized uptake; SUVRTF, tissue fraction-corrected standardized. * lobectomy vs. others (wedge resection or segmentectomy)