Demographics |
n |
(%) |
n |
(%) |
n |
(%) |
(%) |
|
|
|
|
n |
(%) |
Age in years (median, [IQR]) |
2.8 |
[1.4, 5.5] |
2.3 |
[1.1,
4.7] |
2.9 |
[1.6, 5.8] |
[1.6, 5.8] |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
2.2 |
[1.0,
4.7] |
Male gender |
1,932 |
(54.1%) |
546 |
(56.4%) |
1,386 |
(53.2%) |
(53.2%) |
0.10 |
0.10 |
0.10 |
0.10 |
417 |
(56.0%) |
Publically insured |
1,980 |
(55.4%) |
562 |
(60.7%) |
1,418 |
(53.5%) |
(53.5%) |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
450 |
(60.4%) |
Race
White
Black
Other
|
2,558
638
375
|
(71.6%)
(17.9%)
(10.5%)
|
689
173
106
|
(71.2%)
(17.9%)
(11.0%)
|
1,869
465
269
|
(71.8%)
(17.9%)
(10.3%)
|
(71.8%)
(17.9%)
(10.3%)
|
0.86
|
0.86
|
0.86
|
0.86
|
542
125
78
|
(72.8%)
(16.8%)
(10.5%)
|
Hispanic ethnicity |
145 |
(4.1%) |
46 |
(4.8%) |
99 |
(3.8%) |
(3.8%) |
0.24 |
0.24 |
0.24 |
0.24 |
35 |
(4.7%) |
Clinical Characteristics |
|
|
|
|
|
|
|
|
|
|
|
|
|
BPD/CLDI diagnosisb
|
932 |
(26.1%) |
233 |
(24.1%) |
699 |
(26.9%) |
(26.9%) |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
162 |
(21.7%) |
Number of complex chronic conditions
1-2
3-4
5-6
7-8
9-12
|
273
726
1,476
879
217
|
(7.6%)
(20.3%)
(41.3%)
(24.6%)
(6.1%)
|
47
145
406
295
75
|
(4.9%)
(15.0%)
(41.9%)
(30.5%)
(7.7%)
|
226
581
1,070
584
142
|
(8.7%)
(22.3%)
(41.1%)
(22.5%)
(5.5%)
|
(8.7%)
(22.3%)
(41.1%)
(22.5%)
(5.5%)
|
<0.001
|
<0.001
|
<0.001
|
<0.001
|
35
100
305
240
65
|
(4.7%)
(13.4%)
(40.9%)
(32.2%)
(8.7%)
|
Time of tracheostomy in years (median, [IQR]) |
1.8 |
[0.8, 3.5] |
1.4 |
[0.4, 3.1] |
1.9 |
[0.9, 3.6] |
[0.9, 3.6] |
<0.001 |
<0.001 |
<0.001 |
<0.001 |
1.3 |
[0.3, 2.8] |
Baseline ventilator usec
|
2,484 |
(69.6%) |
675 |
(69.7%) |
1,809 |
(69.5%) |
(69.5%) |
0.92 |
0.92 |
0.92 |
0.92 |
535 |
(71.8%) |
Encounter type at culture collection
Hospital or ED
Office visit
Specimen collection only
|
2,966
368
237
|
(83.1%)
(10.3%)
(6.6%)
|
867
79
22
|
(89.6%)
(8.2%)
(2.3%)
|
2,099
289
215
|
(80.6%)
(11.1%)
(8.3%)
|
(80.6%)
(11.1%)
(8.3%)
|
<0.001
|
<0.001
|
<0.001
|
<0.001
|
654
72
19
|
(87.8%)
(9.7%)
(2.6%)
|
Department at culture collection
Acute care
Critical care
OR/Bronchoscopy suite
Emergency Department
Pulmonology, ENT Clinic
Other Clinicd or Lab
|
1,394
251
999
289
244
394
|
(39.0%)
(7.0%)
(28.0%)
(8.1%)
(6.8%)
(11.0%)
|
638
112
64
49
55
50
|
(65.9%)
(11.6%)
(6.6%)
(5.1%)
(5.7%)
(5.2%)
|
756
139
935
240
189
344
|
(32.8%)
(5.3%)
(35.9%)
(9.2%)
(7.3%)
(13.2%)
|
(32.8%)
(5.3%)
(35.9%)
(9.2%)
(7.3%)
(13.2%)
|
<0.001
|
<0.001
|
<0.001
|
<0.001
|
514
86
12
39
52
42
|
(69.0%)
(11.5%)
(1.6%)
(5.2%)
(7.0%)
(5.6%)
|
Respiratory Culture Characteristics |
Respiratory
Culture Characteristics |
|
|
|
|
|
|
|
|
|
|
|
|
Specimen source
Tracheostomy aspirate
Bronchoalveolar lavage
|
2,176
1,395
|
(60.9%)
(39.1%)
|
811
157
|
(83.8%)
(16.2%)
|
1,365
1,238
|
(52.4%)
(47.6%)
|
(52.4%)
(47.6%)
|
<0.001
|
<0.001
|
<0.001
|
<0.001
|
672
73
|
(90.2%)
(9.8%)
|
Polymicrobial growth |
134 |
(3.8%) |
48 |
(5.0%) |
86 |
(3.3%) |
(3.3%) |
0.03 |
0.03 |
0.03 |
0.03 |
46 |
(6.2%) |
WBCs quantified on gram staine
Many
Moderate
Few
Very few
None
|
1,414
731
723
458
204
|
(39.6%)
(20.5%)
(20.2%)
(12.8%)
(5.7%)
|
479
189
177
82
33
|
(49.5%)
(19.5%)
(18.3%)
(8.5%)
(3.4%)
|
935
542
546
376
171
|
(35.9%)
(20.8%)
(21.0%)
(14.4%)
(6.6%)
|
(35.9%)
(20.8%)
(21.0%)
(14.4%)
(6.6%)
|
<0.001
|
<0.001
|
<0.001
|
<0.001
|
376
150
129
60
23
|
(50.5%)
(20.1%)
(17.3%)
(8.1%)
(3.1%)
|