Table. 4—

Time dependent mortality rates of statistically significant variables stratified according to the clinically important thresholds

VariablesSubjects nMortality rates %
6 month1 yr2 yr3 yr
Duration of disease
 <10 yrs11517303643
 10–19 yrs5229343850
 ≥20 yrs3833415168
Time since first hospitalisation
 Hospitalised for the first time4910182027
 1–5 yrs7121293547
 >5 yrs8534455364
Pa,O2
 <45 mmHg9629425466
 45–59.9 mmHg7726343140
 ≥60 mmHg32061319
BMI
 <20 kg·m−25833414763
 20–24.9 kg·m−29421303746
 ≥25 kg·m−25319313440
Albumin
 <2.5 g·dL−13038636978
 2.5–3.5 g·dL−19627384563
 >3.5 g·dL−17914162023
  • Data are presented as n or %. Pa,O2: arterial oxygen tension; BMI: body mass index. kPa = mmHg×0.133.