Research Article

Variation of Risk Factors for Cause-Specific Reintubation: A Preliminary Study

Table 2

Characteristics of the subjects.

AllSuccessful extubation groupReintubation group
Total valueRespiratory insufficiency group valueNonrespiratory insufficiency group value

Patients, (%)262250 (95.4)12 (4.5)7 (2.6)5 (1.9)
Age64.0 ± 16.265.0 ± 16.160.0 ± 16.80.15162.0 ± 18.20.80843.0 ± 13.30.053
Sex (male : female)149 : 113144 : 1065 : 70.2764 : 30.9811 : 40.093
APACHE score12.5 ± 7.712.0 ± 7.517.5 ± 9.10.25717.0 ± 8.20.62618.0 ± 11.10.230
SOFA score6.0 ± 2.96.0 ± 2.95.0 ± 2.90.9797.0 ± 2.70.9605.0 ± 3.50.988
Intubation duration (days)1.0 ± 4.01.0 ± 3.94.5 ± 5.00.0064.0 ± 6.00.2539.0 ± 2.90.003
P/F ratio350.0 ± 89.2360.0 ± 88.3341.0 ± 106.80.327252.0 ± 106.60.056350.0 ± 81.20.440
RSBI43.0 ± 17.043.0 ± 16.663.0 ± 20.60.0358.0 ± 19.00.10668.0 ± 24.70.175
The positive fluid balance (ml)85.0 ± 1082.5103.1 ± 1088.6−291.5 ± 902.70.14167.0 ± 580.60.734−793.4 ± 1093.30.056
PaCO2 (mmHg)39.7 ± 5.039.5 ± 4.942.8 ± 6.40.11942.6 ± 8.20.47842.9 ± 3.70.108
28-day mortality, (%)2 (0.7)2 (0.7)0 (0)0.7560 (0)0.8120 (0)0.842
90-day mortality, (%)14 (5.3)14 (5.3)0 (0)0.3990 (0)0.5200 (0)0.592

Values are expressed as means ± standard deviations or numbers (percentages). The value of each group is described in comparison to the successful extubation group. APACHE: acute physiology and chronic health evaluation; SOFA: sequential organ failure assessment; P/F ratio: pressure of arterial oxygen to fractional inspired oxygen concentration ratio; RSBI: rapid shallow breathing index; PaCO2: partial pressure of arterial carbon dioxide.