Table 1 Demographics – overall population
Characteristic | Inpatient (n = 258,262) | Outpatient (n = 3,807,151) | ||||||
|---|---|---|---|---|---|---|---|---|
SpO2 Only (n = 19,308) | Capnography Only (n = 4258) | SpO2 and Capnography (n = 888) | Neither (n = 233,808) | SpO2 Only (n = 131,292) | Capnography Only (n = 59,256) | SpO2 and Capnography (n = 3059) | Neither (n = 3,613,544) | |
Age | ||||||||
Overall | 63.43 ± 18.42 | 64.12 ± 17.19 | 65.02 ± 17.05 | 64.33 ± 17.52 | 53.36 ± 20.91 | 58.35 ± 14.70 | 57.95 ± 15.24 | 57.54 ± 15.31 |
80+ | 3961 (21%) | 854 (20%) | 204 (23%) | 50,707 (22%) | 8260 (6%) | 3249 (5%) | 183 (6%) | 200,883 (6%) |
71–80 | 3886 (20%) | 911 (21%) | 168 (19%) | 47,930 (21%) | 18,818 (14%) | 9147 (15%) | 458 (15%) | 515,643 (14%) |
61–70 | 3733 (19%) | 817 (19%) | 181 (20%) | 43,336 (19%) | 27,376 (21%) | 14,813 (25%) | 729 (24%) | 857,286 (24%) |
51–60 | 3399 (18%) | 731 (17%) | 158 (18%) | 40,155 (17%) | 30,363 (23%) | 16,354 (28%) | 792 (26%) | 1,038,536 (28%) |
41–50 | 2193 (11%) | 517 (12%) | 105 (12%) | 27,244 (12%) | 17,515 (13%) | 8913 (15%) | 520 (17%) | 55,431 (15%) |
31–40 | 1039 (5%) | 237 (6%) | 48 (5%) | 14,190 (6%) | 8924 (7%) | 3852 (7%) | 223 (7%) | 233,897 (6%) |
18–30 | 752 (4%) | 183 (4%) | 17 (2%) | 9253 (4%) | 6412 (5%) | 2597 (4%) | 119 (4%) | 158,524 (4%) |
< 18 | 345 (2%) | 8 (0%) | 7 (1%) | 993 (0%) | 13,624 (10%) | 331 (1%) | 35 (1%) | 53,344 (1%) |
CCI | ||||||||
Overall | 2.59 ± 2.49 | 2.53 ± 2.48 | 2.57 ± 2.47 | 2.52 ± 2.46 | 0.51 ± 1.04 | 0.45 ± 0.97 | 0.79 ± 1.20 | 0.39 ± 0.90 |
> 2 | 8163 (42%) | 1743 (41%) | 368 (41%) | 95,025 (41%) | 6283 (5%) | 2310 (4%) | 228 (7%) | 119,647 (3%) |
2 | 2990 (15%) | 637 (15%) | 148 (17%) | 36,636 (16%) | 8371 (6%) | 3302 (6%) | 331 (11%) | 171,185 (5%) |
1 | 3722 (19%) | 894 (21%) | 169 (19%) | 49,112 (21%) | 24,123 (18%) | 10,705 (18%) | 824 (27%) | 571,858 (16%) |
0 | 4433 (23%) | 984 (23%) | 203 (23%) | 53,035 (23%) | 92,515 (70%) | 42,939 (72%) | 1676 (55%) | 2,750,854 (76%) |
APR severity of illness | ||||||||
1 = mild | 1751 (9%) | 443 (10%) | 87 (10%) | 23,466 (10%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
2 = moderate | 5621 (29%) | 1428 (34%) | 304 (34%) | 75,251 (32%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
3 = severe | 8283 (43%) | 1816 (43%) | 360 (41%) | 98,750 (42%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
4 = extreme | 3653 (19%) | 571 (13%) | 137 (15%) | 36,341 (16%) | 0 (0%) | 0 (0%) | 0 (0%) | 0 (0%) |
Gender | ||||||||
Female | 9975 (52%) | 2224 (52%) | 450 (51%) | 124,726 (53%) | 74,730 (57%) | 33,635 (57%) | 1867 (61%) | 2,024,108 (56%) |
Male | 9333 (48%) | 2034 (48%) | 438 (49%) | 109,082 (47%) | 56,562 (43%) | 25,621 (43%) | 1192 (39%) | 1,589,436 (44%) |
Race | ||||||||
White | 14,032 (73%) | 2837 (67%) | 580 (65%) | 158,011 (68%) | 101,037 (77%) | 45,307 (76%) | 2689 (88%) | 2,637,723 (73%) |
Black | 2756 (14%) | 731 (17%) | 177 (20%) | 34,632 (15%) | 11,813 (9%) | 6380 (11%) | 284 (9%) | 304,535 (8%) |
Hispanic | 385 (2%) | 77 (2%) | 87 (10%) | 7084 (3%) | 3987 (3%) | 1234 (2%) | 0 (0%) | 66,752 (2%) |
Other | 2135 (11%) | 613 (14%) | 44 (5%) | 34,081 (15%) | 14,455 (11%) | 6335 (11%) | 86 (3%) | 604,534 (17%) |
Comorbidity | ||||||||
HTN | 12,079 (63%) | 2747 (65%) | 582 (66%) | 144,259 (62%) | 40,244 (31%) | 18,788 (32%) | 1451 (47%) | 972,692 (27%) |
Diabetes | 5930 (31%) | 1354 (32%) | 274 (31%) | 71,495 (31%) | 17,501 (13%) | 7797 (13%) | 615 (20%) | 393,796 (11%) |
COPD | 4727 (25%) | 1031 (24%) | 209 (24%) | 55,507 (24%) | 11,656 (9%) | 4524 (8%) | 570 (19%) | 254,671 (7%) |
CRF | 4070 (21%) | 873 (21%) | 183 (21%) | 46,587 (20%) | 1658 (1%) | 593 (1%) | 63 (2%) | 35,807 (1%) |
CHF | 3688 (19%) | 681 (16%) | 148 (17%) | 41,238 (18%) | 2281 (2%) | 665 (1%) | 113 (4%) | 33,729 (1%) |
PUD | 2748 (14%) | 577 (14%) | 98 (11%) | 33,639 (14%) | 5453 (4%) | 2045 (4%) | 162 (5%) | 111,461 (3%) |
Obesity | 2125 (11%) | 461 (11%) | 100 (11%) | 25,189 (11%) | 6027 (5%) | 1644 (3%) | 143 (5%) | 130,982 (4%) |
Cancer | 1895 (10%) | 449 (11%) | 86 (10%) | 23,155 (10%) | 3970 (3%) | 1611 (3%) | 85 (3%) | 85,219 (2%) |
MLD | 2011 (10%) | 417 (10%) | 98 (11%) | 23,108 (10%) | 1913 (2%) | 808 (1%) | 63 (2%) | 39,733 (1%) |
MSLD | 2009 (10%) | 399 (9%) | 91 (10%) | 22,687 (10%) | 2193 (2%) | 917 (2%) | 66 (2%) | 43,521 (1%) |
MI | 1713 (9%) | 348 (8%) | 72 (8%) | 21,179 (9%) | 2171 (2%) | 982 (2%) | 115 (4%) | 49,888 (1%) |
CVD | 1303 (7%) | 256 (6%) | 54 (6%) | 15,601 (7%) | 764 (1%) | 183 (<1%) | 36 (1%) | 11,995 (<1%) |
PVD | 1406 (7%) | 281 (7%) | 63 (7%) | 15,224 (7%) | 1081 (1%) | 340 (1%) | 57 (2%) | 17,958 (<1%) |
MST | 916 (5%) | 218 (5%) | 50 (6%) | 11,248 (5%) | 496 (<1%) | 190 (<1%) | 13 (<1%) | 9539 (<1%) |
RA | 657 (3%) | 144 (3%) | 16 (2%) | 8177 (4%) | 1453 (1%) | 693 (1%) | 60 (2%) | 29,597 (1%) |
Dementia | 172 (1%) | 24 (1%) | 12 (1%) | 2127 (1%) | 39 (<1%) | 19 (<1%) | 2 (<1%) | 733 (<1%) |
Paralysis | 172 (1%) | 29 (1%) | 7 (1%) | 2334 (1%) | 91 (<1%) | 23 (<1%) | 6 (<1%) | 1459 (<1%) |
AIDS | 65 (<1%) | 15 (<1%) | 10 (1%) | 978 (<1%) | 72 (<1%) | 27 (<1%) | 2 (<1%) | 1687 (<1%) |
Region | ||||||||
E. N. Central | 707 (4%) | 864 (20%) | 19 (2%) | 36,866 (16%) | 900 (1%) | 7311 (12%) | 30 (1%) | 747,309 (21%) |
E. S. Central | 2175 (11%) | 7 (<1%) | 41 (5%) | 12,738 (5%) | 22,514 (17%) | 113 (<1%) | 1886 (62%) | 218,449 (6%) |
M. Atlantic | 1097 (6%) | 12 (<1%) | 0 (0%) | 23,470 (10%) | 148 (<1%) | 8 (<1%) | 0 (0%) | 195,389 (5%) |
Mountain | 434 (2%) | 370 (9%) | 0 (0%) | 11,684 (5%) | 1029 (1%) | 2959 (5%) | 2 (<1%) | 205,205 (6%) |
New England | 446 (2%) | 108 (3%) | 0 (0%) | 8113 (3%) | 2281 (2%) | 7431 (13%) | 1 (<1%) | 193,418 (5%) |
Pacific | 1584 (8%) | 380 (9%) | 23 (3%) | 34,221 (15%) | 11,604 (9%) | 3170 (5%) | 69 (2%) | 572,954 (16%) |
S. Atlantic | 8637 (45%) | 2122 (50%) | 745 (84%) | 67,627 (29%) | 53,391 (41%) | 31,137 (53%) | 776 (25%) | 884,648 (24%) |
W. N. Central | 603 (3%) | 80 (2%) | 8 (1%) | 16,276 (7%) | 8190 (6%) | 355 (1%) | 7 (<1%) | 370,834 (10%) |
W. S. Central | 3625 (19%) | 315 (7%) | 52 (6%) | 22,813 (10%) | 31,235 (24%) | 6772 (11%) | 288 (9%) | 225,338 (6%) |
Teaching Hospital | ||||||||
Yes | 8672 (45%) | 804 (19%) | 130 (15%) | 88,195 (38%) | 41,105 (31%) | 9659 (16%) | 491 (16%) | 1,117,242 (31%) |
Hospital Bed size | ||||||||
< 250 | 2523 (13%) | 822 (19%) | 81 (9%) | 52,543 (22%) | 38,376 (29%) | 17,738 (30%) | 1968 (64%) | 1303,833 (36%) |
250–500 | 7752 (40%) | 2571 (60%) | 257 (29%) | 112,743 (48%) | 25,602 (20%) | 33,685 (57%) | 1022 (33%) | 1,672,591 (46%) |
500 + | 9033 (47%) | 865 (20%) | 550 (62%) | 68,522 (29%) | 67,314 (51%) | 7833 (13%) | 69 (2%) | 637,120 (18%) |
Hospital Location | ||||||||
Rural | 2320 (12%) | 1124 (26%) | 47 (5%) | 26,096 (11%) | 27,118 (21%) | 8916 (15%) | 44 (1%) | 598,635 (17%) |
Urban | 16,988 (88%) | 3134 (74%) | 841 (95%) | 207,712 (89%) | 104,174 (79%) | 50,340 (85%) | 3015 (99%) | 3,014,909 (83%) |