Table 2—

Tumour necrosis factor(TNF)-α blood levels in chronic obstructive pulmonary disease (COPD)

First author [Ref.]GroupBMI/FFMITNF-α pg·mL−1p-value
Di Francia 36COPDBMI 18.170.2<0.001
COPDBMI 26.26.7
Takabatake 34COPDBMI 18.16.59<0.05
HealthyBMI 22.85.41
Eid 37COPDBMI 21.23.2<0.04
COPDBMI 24.42.4
Itoh 38COPDBMI 18.06.8<0.01
COPDBMI 24.24.3
Broekhuizen 14#COPDFFMI 14.21.35
COPDFFMI 16.91.22
HealthyFFMI 20.21.23
COPDFFMI 14.50.39
van Helvoort 39COPDFFMI 18.60.46
HealthyFFMI 19.70.70
  • BMI: body mass index; FFMI: free-fat mass index. #: no TNF-α polymorphisms found.