Table 2

Correlations between LBI and other indices in the 79 subjects with desaturation or obstructive apnoea

Age DT OAI Min. Sao 2 CAI
LBI-NR−0.160.270.57−0.50−0.20
p value>0.05 (ns)<0.05<0.001<0.001>0.05 (ns)
LBI-R−0.030.320.65−0.57−0.22
p value>0.05 (ns)<0.01<0.001<0.001>0.05 (ns)
  • LBI-NR, laboured breathing index during non-REM sleep; LBI-R, laboured breathing index during REM sleep; OAI, obstructive apnoea index per hour; CAI, central apnoea index per hour; min. Sao 2, minimum Sao 2value; ns, not significant.