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. 2023 Oct 8;15(10):2066. doi: 10.3390/v15102066

Table 4.

Median days of SARS-CoV-2 shedding, calculated from the day of antiviral drug onset according to different conditions.

Remdesivir Cohort Ω
SARS-CoV-2 Shedding
Nirmatrelvir/Ritonavir Cohort Ω
SARS-CoV-2 Shedding
Variable Median Days
(Range)
n p Value Median Days
(Range)
n p Value
Age 0.25 0.87
• <41 years 21 (2–32) 7 17 (6–95) 12
• 41–60 years 30 (2–162) 55 20.5 (2–220) 40
• 61–70 years 30 (1–208) 32 17.5 (2–132) 30
• >71 years 25 (2–108) 34 21 (2–167) 40
SARS-CoV-2 infection severity 0.013 NT
• Mild 27 (2–162) 91 20 (2–220) 116
• Moderate 27.5 (3–108) 16 7.5 (2–25) 4
• Severe 39 (1–208) 21 5 (2–8) 2
Fever 0.035 0.83
• Yes 32 (1–208) 61 20 (2–122) 42
• No 23 (2–162) 67 19.5 (2–220) 80
Corticosteroids at infection 0.82 0.13
• Yes 31 (3–208) 39 14.5 (2–75) 32
• No 28 (1–162) 89 21 (2–220) 90
Pneumonia 0.022 NT
• Yes 34 (1–208) 37 7.5 (2–25) 6
• No 27 (2–162) 91 20.5 (2–220) 116
Hospital admission 0.15 0.88
• Yes 30 (1–117) 69 25 (2–52) 11
• No 24 (2–208) 59 20 (2–220) 111
Oxygen requirement 0.022 0.8
• Yes 39 (1–208) 21 5 (2–8) 2
• No 26.5 (2–162) 106 20 (2–220) 120
Monoclonal antibodies 0.055 0.82
• Yes 35 (7–162) 26 20.5 (2–132) 11
• No 25 (1–208) 98 20 (2–220) 111
Convalescent plasma 0.7 0.49
• Yes 30 (4–106) 24 25 (2–59) 5
• No 28 (1–208) 104 19 (2–220) 117
Corticosteroids for COVID-19 therapy 0.004 0.11
• Yes 37 (1–208) 31 2 (2–25) 3
• No 26 (2–117) 97 20 (2–220) 119
Time from last therapy to COVID-19 0.49 0.87
• <6 months 29 (1–162) 104 19.5 (2–167) 90
• 6–12 months 29 (11–62) 9 18.5 (2–122) 12
• >12 months or not treated 17 (3–208) 15 22.5 (2–220) 18
Anti-CD20 0.015 0.34
• Yes 33 (1–162) 39 20 (2–220) 59
• No 27 (2–208) 89 20 (2–167) 63
Time from anti-CD 20 to COVID-19 0.027 0.69
• <6 months 34 (1–162) 32 20 (6–132) 49
• 6–12 months 67.5 (62–73) 2 32 (2–63) 2
• >12 months 29 (7–63) 5 16 (2–220) 8
• Not treated 27 (2–208) 89 20 (2–167) 63
B-cell NHL/CLL vs. others 0.005 0.61
• Yes 33 (1–162) 49 19.5 (2–220) 64
• No 25 (2–208) 79 20.5 (2–167) 58
Ct value at diagnosis * 0.001 0.82
• ≥20 19 (2–108) 49 19 (2–90) 28
• <20 38 (1–208) 47 21 (5–95) 34
ATV onset from the first positive PCR 0.008 0.6
• <5 days 27.5 (2–208) 100 20 (2–167) 110
• ≥5 days 31 (1–162) 28 20.5 (2–220) 12
Duration of ATV 0.001 0.83
• <5 days 19 (2–89) 42 21 (20–21) 2
• 5 days 33 (1–208) 52 19 (2–220) 108
• >5 days 31.5 (4–108) 34 24 (4–132) 12
Co-infections 0.34 0.63
• Yes 34 (2–208) 17 38 (13–63) 2
• No 27 (1–162) 111 20 (2–220) 120
ANC < 0.5 × 109/L 0.4 0.25
• Yes 38 (2–108) 11 14 (6–51) 5
• No 30 (1–117) 77 24 (2–122) 49
ALC < 0.5 × 109/L 0.1 0.81
• Yes 35 (2–117) 36 20.5 (2–122) 18
• No 27 (1–90) 52 23 (2–95) 36
Vaccination status 0.039 0.28
• Complete 31 (1–208) 82 20 (2–220) 93
• Incomplete 24.5 (2–90) 46 18 (2–167) 29

Abbreviations: NHL, non-Hodgkin lymphoma; CLL, chronic lymphocytic leukemia; Ct, PCR cycle threshold; ANC, absolute neutrophil count; ALC, absolute lymphocyte count; NT, not tested. Ω Median duration of SARS-CoV-2 detection estimated from the day of antiviral onset in the remdesivir cohort was 28.5 days (range 1–208), whereas in the nirmatrelvir/ritonavir cohort, it was 20 days (range 3–220) (p = 0.004). * These variables have not been tested since there is a lack of data in more than 40% of cases.