Table 2.
Laboratory test results among COVID-19 patients with LTOT compared with COVID-19 patients without LTOT
| Type | Before propensity score matching | After propensity score matching | ||||
| LTOT mean±SD (n) | No LTOT mean±SD (n) | P value | LTOT mean±SD (n) | No LTOT mean±SD (n) | P value | |
| Systolic blood pressure | 126.92±20.88 (6751) | 124.32±18.45 (115578) | <0.001 | 126.92±20.88 (6745) | 127.57±18.97 (4591) | 0.092 |
| Diastolic blood pressure | 74.72±13.3 (6955) | 74.5±12.25 (117093) | 0.144 | 74.72±13.29 (6949) | 75.1±12.64 (4635) | 0.124 |
| Leucocytes | 8.08±5.37 (6249) | 8.05±29.6 (81865) | 0.935 | 8.08±5.37 (6245) | 7.73±3.46 (3214) | <0.001 |
| Lymphocytes | 23.52±12.25 (5244) | 25.31±11.73 (73104) | <0.001 | 23.52±12.25 (5238) | 24.79±11.3 (2852) | <0.001 |
| Platelets | 259.71±99.28 (6373) | 263.86±91.06 (82724) | <0.001 | 259.76±99.29 (6367) | 256.82±84.74 (3300) | 0.147 |
| Serum creatinine | 1.43±4.19 (6511) | 1.01±1.99 (82058) | <0.001 | 1.43±4.19 (6505) | 1.19±1.33 (3715) | <0.001 |
| Blood urea nitrogen | 19.42±15.94 (5363) | 16.89±12.66 (66174) | <0.001 | 19.4±15.93 (5357) | 18.45±12.87 (3267) | 0.004 |
| Lactate dehydrogenase | 374.05±680.51 (1800) | 369.42±503.9 (17146) | 0.721 | 374.17±680.87 (1798) | 318.18±177.96 (628) | 0.042 |
| Alanine aminotransferase | 40.4±194.16 (5764) | 42.75±152.74 (67653) | 0.275 | 40.42±194.26 (5758) | 31.49±50.56 (2954) | 0.014 |
| Aspartate aminotransferase | 51.18±447.66 (5755) | 42.48±362.99 (67173) | 0.087 | 51.21±447.89 (5749) | 42.39±106.06 (2997) | 0.231 |
| Alkaline phosphatase | 95.62±62.63 (5677) | 80.31±48.37 (66328) | <0.011 | 95.54±62.55 (5671) | 84.65±42.9 (3036) | <0.001 |
| Serum ferritin | 613.81±1870.26 (2614) | 742.76±2742.34 (22438) | 0.019 | 614.02±1870.59 (2613) | 545.99±959.78 (1011) | 0.271 |
| Troponin I | 0.38±3.32 (1338) | 0.72±12.59 (6906) | 0.332 | 0.39±3.33 (1334) | 0.25±1.21 (299) | 0.494 |
| C reactive protein | 46.33±67.13 (2644) | 37.53±56.76 (25138) | <0.001 | 46.32±67.14 (2642) | 38.35±56.43 (906) | <0.001 |
Measurement unit: leucocytes in 1000/μL; platelets in 1000/μL; serum creatinine in mg/dL; CRP in mg/L; lymphocytes, BUN in mg/dL; serum ferritin, troponin I in ng/mL; lactate dehydrogenase, alanine aminotransferase (ALT), aspartate aminotransferase, alkaline phosphatase (ALP) in units/L.
LTOT, long-term opioid therapy.