Table 3.

Point Estimates and 95% CIs for aGMRs Associated With Each Model Covariate for Visit 3 (28–42 d Post-dose 2) and 4 (Approximately 6 Months Post-dose 2) HAI Titers to Each Influenza Antigen

Visit 3A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.60 (1.02–2.50)1.86 (1.10–3.13)1.44 (0.90–2.31)
log2-baseline titer1.24 (1.12–1.38)1.32 (1.20–1.46)1.24 (1.11–1.38)
Age (y)0.97 (0.91–1.03)1.01 (0.94–1.07)0.97 (0.91–1.03)
Time post-HCT (m)1.06 (1.02–1.10)1.06 (1.01–1.11)1.06 (1.02–1.10)
CD4+ count0.98 (0.87–1.11)1.12 (0.98–1.28)1.02 (0.90–1.15)
CD19+ count1.09 (1.02–1.17)1.12 (1.04–1.21)1.12 (1.05–1.21)
ALC (100/μL)0.97 (0.93–1.01)0.95 (0.90–1.00)0.97 (0.93–1.02)
GVHD history (Yes)0.82 (0.50–1.34)0.53 (0.30–0.92)0.92 (0.56–1.53)
Malignant (Yes)0.86 (0.51–1.43)0.93 (0.52–1.64)0.86 (0.52–1.44)
Visit 3A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.60 (1.02–2.50)1.86 (1.10–3.13)1.44 (0.90–2.31)
log2-baseline titer1.24 (1.12–1.38)1.32 (1.20–1.46)1.24 (1.11–1.38)
Age (y)0.97 (0.91–1.03)1.01 (0.94–1.07)0.97 (0.91–1.03)
Time post-HCT (m)1.06 (1.02–1.10)1.06 (1.01–1.11)1.06 (1.02–1.10)
CD4+ count0.98 (0.87–1.11)1.12 (0.98–1.28)1.02 (0.90–1.15)
CD19+ count1.09 (1.02–1.17)1.12 (1.04–1.21)1.12 (1.05–1.21)
ALC (100/μL)0.97 (0.93–1.01)0.95 (0.90–1.00)0.97 (0.93–1.02)
GVHD history (Yes)0.82 (0.50–1.34)0.53 (0.30–0.92)0.92 (0.56–1.53)
Malignant (Yes)0.86 (0.51–1.43)0.93 (0.52–1.64)0.86 (0.52–1.44)
Visit 4A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.22 (0.76–1.99)1.47 (0.93–2.34)1.07 (0.67–1.71)
log2-baseline titer1.30 (1.16–1.46)1.47 (1.34–1.60)1.29 (1.16–1.44)
Age (y)0.99 (0.93–1.06)1.05 (0.99–1.12)1.01 (0.95–1.08)
Time post-HCT (m)1.03 (0.99–1.07)1.02 (0.98–1.06)1.02 (0.98–1.07)
CD4+ count1.05 (0.92–1.19)1.25 (1.11–1.40)1.11 (0.98–1.25)
CD19+ count1.10 (1.02–1.18)1.09 (1.01–1.17)1.13 (1.05–1.22)
ALC (100/μL)0.96 (0.91–1.00)0.95 (0.91–0.99)0.96 (0.92–1.00)
GVHD history (Yes)0.86 (0.50–1.46)0.97 (0.58–1.63)0.84 (0.50–1.40)
Malignant (yes)0.58 (0.33–1.00)0.78 (0.46–1.32)0.97 (0.58–1.64)
Visit 4A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.22 (0.76–1.99)1.47 (0.93–2.34)1.07 (0.67–1.71)
log2-baseline titer1.30 (1.16–1.46)1.47 (1.34–1.60)1.29 (1.16–1.44)
Age (y)0.99 (0.93–1.06)1.05 (0.99–1.12)1.01 (0.95–1.08)
Time post-HCT (m)1.03 (0.99–1.07)1.02 (0.98–1.06)1.02 (0.98–1.07)
CD4+ count1.05 (0.92–1.19)1.25 (1.11–1.40)1.11 (0.98–1.25)
CD19+ count1.10 (1.02–1.18)1.09 (1.01–1.17)1.13 (1.05–1.22)
ALC (100/μL)0.96 (0.91–1.00)0.95 (0.91–0.99)0.96 (0.92–1.00)
GVHD history (Yes)0.86 (0.50–1.46)0.97 (0.58–1.63)0.84 (0.50–1.40)
Malignant (yes)0.58 (0.33–1.00)0.78 (0.46–1.32)0.97 (0.58–1.64)

Abbreviations: aGMR, adjusted geometric mean ratio; ALC, absolute leukocyte count; CI, confidence interval; GVHD, graft versus host disease; HAI, hemagglutination inhibition; HCT, hematopoietic cell transplant; HD-TIV, high-dose trivalent influenza vaccine.

Table 3.

Point Estimates and 95% CIs for aGMRs Associated With Each Model Covariate for Visit 3 (28–42 d Post-dose 2) and 4 (Approximately 6 Months Post-dose 2) HAI Titers to Each Influenza Antigen

Visit 3A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.60 (1.02–2.50)1.86 (1.10–3.13)1.44 (0.90–2.31)
log2-baseline titer1.24 (1.12–1.38)1.32 (1.20–1.46)1.24 (1.11–1.38)
Age (y)0.97 (0.91–1.03)1.01 (0.94–1.07)0.97 (0.91–1.03)
Time post-HCT (m)1.06 (1.02–1.10)1.06 (1.01–1.11)1.06 (1.02–1.10)
CD4+ count0.98 (0.87–1.11)1.12 (0.98–1.28)1.02 (0.90–1.15)
CD19+ count1.09 (1.02–1.17)1.12 (1.04–1.21)1.12 (1.05–1.21)
ALC (100/μL)0.97 (0.93–1.01)0.95 (0.90–1.00)0.97 (0.93–1.02)
GVHD history (Yes)0.82 (0.50–1.34)0.53 (0.30–0.92)0.92 (0.56–1.53)
Malignant (Yes)0.86 (0.51–1.43)0.93 (0.52–1.64)0.86 (0.52–1.44)
Visit 3A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.60 (1.02–2.50)1.86 (1.10–3.13)1.44 (0.90–2.31)
log2-baseline titer1.24 (1.12–1.38)1.32 (1.20–1.46)1.24 (1.11–1.38)
Age (y)0.97 (0.91–1.03)1.01 (0.94–1.07)0.97 (0.91–1.03)
Time post-HCT (m)1.06 (1.02–1.10)1.06 (1.01–1.11)1.06 (1.02–1.10)
CD4+ count0.98 (0.87–1.11)1.12 (0.98–1.28)1.02 (0.90–1.15)
CD19+ count1.09 (1.02–1.17)1.12 (1.04–1.21)1.12 (1.05–1.21)
ALC (100/μL)0.97 (0.93–1.01)0.95 (0.90–1.00)0.97 (0.93–1.02)
GVHD history (Yes)0.82 (0.50–1.34)0.53 (0.30–0.92)0.92 (0.56–1.53)
Malignant (Yes)0.86 (0.51–1.43)0.93 (0.52–1.64)0.86 (0.52–1.44)
Visit 4A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.22 (0.76–1.99)1.47 (0.93–2.34)1.07 (0.67–1.71)
log2-baseline titer1.30 (1.16–1.46)1.47 (1.34–1.60)1.29 (1.16–1.44)
Age (y)0.99 (0.93–1.06)1.05 (0.99–1.12)1.01 (0.95–1.08)
Time post-HCT (m)1.03 (0.99–1.07)1.02 (0.98–1.06)1.02 (0.98–1.07)
CD4+ count1.05 (0.92–1.19)1.25 (1.11–1.40)1.11 (0.98–1.25)
CD19+ count1.10 (1.02–1.18)1.09 (1.01–1.17)1.13 (1.05–1.22)
ALC (100/μL)0.96 (0.91–1.00)0.95 (0.91–0.99)0.96 (0.92–1.00)
GVHD history (Yes)0.86 (0.50–1.46)0.97 (0.58–1.63)0.84 (0.50–1.40)
Malignant (yes)0.58 (0.33–1.00)0.78 (0.46–1.32)0.97 (0.58–1.64)
Visit 4A/H1N1A/H3N2B/Victoria
Vaccine group (HD-TIV)1.22 (0.76–1.99)1.47 (0.93–2.34)1.07 (0.67–1.71)
log2-baseline titer1.30 (1.16–1.46)1.47 (1.34–1.60)1.29 (1.16–1.44)
Age (y)0.99 (0.93–1.06)1.05 (0.99–1.12)1.01 (0.95–1.08)
Time post-HCT (m)1.03 (0.99–1.07)1.02 (0.98–1.06)1.02 (0.98–1.07)
CD4+ count1.05 (0.92–1.19)1.25 (1.11–1.40)1.11 (0.98–1.25)
CD19+ count1.10 (1.02–1.18)1.09 (1.01–1.17)1.13 (1.05–1.22)
ALC (100/μL)0.96 (0.91–1.00)0.95 (0.91–0.99)0.96 (0.92–1.00)
GVHD history (Yes)0.86 (0.50–1.46)0.97 (0.58–1.63)0.84 (0.50–1.40)
Malignant (yes)0.58 (0.33–1.00)0.78 (0.46–1.32)0.97 (0.58–1.64)

Abbreviations: aGMR, adjusted geometric mean ratio; ALC, absolute leukocyte count; CI, confidence interval; GVHD, graft versus host disease; HAI, hemagglutination inhibition; HCT, hematopoietic cell transplant; HD-TIV, high-dose trivalent influenza vaccine.

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