Table 4. Analysis of putative predictors of detectable BAT based on PET-CT scanning of 99 patients with positive ¹⁸F-FDG BAT uptake at first scan compared with the first subsequent negative scan.

	Univariate analysis			Multivariate analysis
Variable	Coefficient	Odds ratio(95% CI)	p value	Coefficient	Odds ratio(95% CI)	p value
Day length (hours)	−0.315	0.730(0.633–0.842)	0.0001	−0.170	0.844(0.684–1.047)	0.113
Min temp (°C) the day of the scan	−0.103	0.902(0.859–0.947)	0.0001	0.002	1.002(0.884–1.135)	0.98
Min temp (°C) 24 h before theday of the scan	−0.109	0.896(0.853–0.942)	0.0001	0.064	1.066(0.894–1.271)	0.478
Min temp (°C) 48 h before theday of the scan	−0.127	0.881(0.836–0.929)	0.0001	−0.149	0.862(0.74–0.993)	0.040
Neoplastic status (active:non active)	0.250	1.284(0.729–2.263)	0.387	–	–	–