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. 2019 Apr 14;8(4):511. doi: 10.3390/jcm8040511

Figure 2.

Figure 2

Frequencies of (co)morbidities. (a) Frequencies of (co)morbidities in COPD and controls: * More prevalent in the COPD group (p < 0.05); (b) Number of (co)morbidities per subject: mean number of (co)morbidities: 3.9 ± 1.7 in COPD vs. 2.4 ± 1.5 in controls (p < 0.05).