Table 4. Logistic regression analysis model of the probability of having a more than mild shortness of breath.

Parameter	95% C.I. for odds ratio			p
	Lower	Odds ratio	Upper
Age (years)	0.99	1.01	1.04	0.44
Spontaneous gait speed (m/s)	0.02	0.08	0.41	0.002
Rate-pressure product/1000	1.08	1.15	1.23	<0.001
Hemoglobin (g/l)	0.92	0.95	0.98	0.001
Fat tissue mass (kg)	0.97	1	1.03	0.98
Body height (cm)	0.99	1.03	1.07	0.14
Over-hydration (l)	0.68	0.91	1.22	0.52
Davies comorbidity grade 2 vs.0	0.07	0.56	4.59	0.59
Davies comorbidity grade 1 vs.0	0.07	0.63	5.59	0.68
Dialysis dependence	1.11	2.97	7.94	0.03

N = 199, Model R² = 0.24 (Nagelkerke), Model χ² = 39.4, p<0.001. More than mild shortness of breath corresponds to dyspnea Borg scale grade 3 or more.