initialization_att1r_project

Quarto

Positive vs non-positive

Negative vs non-negative

Characteristic Overall
N = 491
negative
N = 241
positive and at risk
N = 251
p-value2
Age at time of sample (years) 75 (68, 79) 75 (69, 78) 75 (65, 79) 0.8
Female sex 0 (NA%) 0 (NA%) 0 (NA%)
Race


0.2
     4 (8.2%) 3 (13%) 1 (4.0%)
    black/aa 5 (10%) 4 (17%) 1 (4.0%)
    white 40 (82%) 17 (71%) 23 (92%)
Ethnicity


0.5
     4 (8.2%) 3 (13%) 1 (4.0%)
    hispanic/latinx 1 (2.0%) 0 (0%) 1 (4.0%)
    not hispanic/latinx 44 (90%) 21 (88%) 23 (92%)
Number of immune-related adverse events (iRAEs) 1 (1, 3) 1 (1, 2) 2 (1, 3) 0.2
AT1R antibody interpretation


<0.001
    at risk 13 (27%) 0 (0%) 13 (52%)
    negative 24 (49%) 24 (100%) 0 (0%)
    positive 12 (24%) 0 (0%) 12 (48%)
Death 15 (34%) 9 (43%) 6 (26%) 0.2
Heart failure at baseline 8 (18%) 3 (14%) 5 (21%) 0.7
Heart failure at outcome


0.4
     4 (8.2%) 3 (13%) 1 (4.0%)
    0 32 (65%) 14 (58%) 18 (72%)
    1 12 (24%) 7 (29%) 5 (20%)
    1 (recovered then HFrEF after ICI) 1 (2.0%) 0 (0%) 1 (4.0%)
Arrhythmia at baseline


>0.9
    0 33 (67%) 16 (67%) 17 (68%)
    1 16 (33%) 8 (33%) 8 (32%)
Arrhythmia at outcome


0.5
    0 28 (57%) 15 (63%) 13 (52%)
    1 21 (43%) 9 (38%) 12 (48%)
New arrhythmia 18 (37%) 8 (33%) 10 (40%) 0.6
ACE inhibitor or ARB use


0.9
    0 30 (61%) 14 (58%) 16 (64%)
    0 on admission, started lisinopril 3/17/2022 1 (2.0%) 1 (4.2%) 0 (0%)
    1 18 (37%) 9 (38%) 9 (36%)
Spironolactone (aldactone) use 1 (2.0%) 0 (0%) 1 (4.0%) >0.9
SGLT2 inhibitor use 3 (6.1%) 3 (13%) 0 (0%) 0.11
Beta-blocker use


0.8
    0 26 (53%) 12 (50%) 14 (56%)
    1 21 (43%) 10 (42%) 11 (44%)
    1 (atenolol) 1 (2.0%) 1 (4.2%) 0 (0%)
    1 (nadolol) 1 (2.0%) 1 (4.2%) 0 (0%)
myocarditis_severty_adjudication


0.4
    1 4 (8.2%) 2 (8.3%) 2 (8.0%)
    1 (asx) 1 (2.0%) 1 (4.2%) 0 (0%)
    1 (hypotension but likely 2/2 to other conditions) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 4 (8.2%) 3 (13%) 1 (4.0%)
    2 (cardiac MRI with signs of prior myocarditis but not active) 1 (2.0%) 1 (4.2%) 0 (0%)
    2 (had cMRI that does not seem conclusive for myocarditis, had CP) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 (Had CP but likely due to pericardial effusion) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 (mildly reduced EF but no clear sx) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 (new DOE) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 (normal echo, ? cardiogenic syncope) 1 (2.0%) 0 (0%) 1 (4.0%)
    2 (unstable but for other reasons) 1 (2.0%) 0 (0%) 1 (4.0%)
    2/3 (Formal MRI didn't read myocarditis, but per notes Dr. Kwan thought was consistent) 1 (2.0%) 1 (4.2%) 0 (0%)
    3 17 (35%) 8 (33%) 9 (36%)
    3 (based on MRI) 1 (2.0%) 0 (0%) 1 (4.0%)
    3 (cMRI 11/2022 with myocarditis) 1 (2.0%) 0 (0%) 1 (4.0%)
    3 (cMRI suggestive and TTE with known apical akinesis iso scar) 1 (2.0%) 1 (4.2%) 0 (0%)
    3 (EF 25 - 30% w/ sx but no instability) 1 (2.0%) 1 (4.2%) 0 (0%)
    3 (EF drop w/ CP but no instability) 1 (2.0%) 0 (0%) 1 (4.0%)
    3 (In MICU but for AHRF 2/2 lung dz) 1 (2.0%) 0 (0%) 1 (4.0%)
    3 (MRI read equivocal but seems real enough) 1 (2.0%) 1 (4.2%) 0 (0%)
    4 6 (12%) 5 (21%) 1 (4.0%)
    4 (aggressively worsening trops despite immunosupp, hypotension likely iso sepsis but seems like grade 4) 1 (2.0%) 0 (0%) 1 (4.0%)
Prolonged immunosuppression 25 (60%) 10 (50%) 15 (68%) 0.2
Number of non-HLA positive beads 4 (1, 12) 1 (1, 5) 10 (4, 16) 0.024
Metastatic cancer 10 (77%) 5 (63%) 5 (100%) 0.2
Hypertension 42 (93%) 21 (100%) 21 (88%) 0.2
Hyperlipidemia 37 (82%) 16 (76%) 21 (88%) 0.4
Coronary artery disease 28 (62%) 13 (62%) 15 (63%) >0.9
Diabetes mellitus 10 (22%) 7 (33%) 3 (13%) 0.2
Heart failure 14 (31%) 6 (29%) 8 (33%) 0.7
Valvular disease 2 (4.4%) 2 (9.5%) 0 (0%) 0.2
Ipilimumab (IPI) 11 (24%) 3 (14%) 8 (33%) 0.14
Nivolumab (NIVO) 16 (36%) 6 (29%) 10 (42%) 0.4
Pembrolizumab (PEMBRO) 24 (53%) 12 (57%) 12 (50%) 0.6
Durvalumab (DURVA) 5 (11%) 2 (9.5%) 3 (13%) >0.9
Atezolizumab (ATEZO) 5 (11%) 2 (9.5%) 3 (13%) >0.9
Days from initial ICI exposure to presentation 75 (33, 333) 67 (35, 239) 75 (31, 594) 0.8
Pulse-dose steroids given 42 (93%) 20 (95%) 22 (92%) >0.9
Prolonged steroid course after pulse 22 (49%) 11 (52%) 11 (46%) 0.7
Mycophenolate mofetil (MMF) 25 (56%) 13 (62%) 12 (50%) 0.4
Abatacept 17 (38%) 9 (43%) 8 (33%) 0.5
IVIG 10 (22%) 4 (19%) 6 (25%) 0.7
Infliximab 2 (4.4%) 2 (9.5%) 0 (0%) 0.2
Tofacitinib 11 (24%) 6 (29%) 5 (21%) 0.5
Any immunosuppression escalation 25 (56%) 10 (48%) 15 (63%) 0.3
Number of immunosuppression escalations 1.00 (0.00, 1.00) 0.00 (0.00, 1.00) 1.00 (0.00, 1.00) 0.4
LVEF (%) — clinical 58 (48, 63) 54 (41, 59) 58 (48, 64) 0.2
RVEF (%) — clinical 49 (45, 56) 46 (39, 50) 52 (49, 63) 0.015
Cardiomyopathy etiology


0.7
     10 (24%) 5 (25%) 5 (24%)
    0 1 (2.4%) 1 (5.0%) 0 (0%)
    both 2 (4.9%) 0 (0%) 2 (9.5%)
    ischemic 1 (2.4%) 1 (5.0%) 0 (0%)
    ischemic_nonischemic_both_sheet_4 3 (7.3%) 1 (5.0%) 2 (9.5%)
    nonischemic 24 (59%) 12 (60%) 12 (57%)
Other irAEs


>0.9
     47 (96%) 23 (96%) 24 (96%)
    myositis, MG myocarditis 1 (2.0%) 0 (0%) 1 (4.0%)
    pneumonitis 1 (2.0%) 1 (4.2%) 0 (0%)
Native T1, CMR (ms) 992 (961, 1,016) 1,002 (982, 1,016) 971 (946, 1,042) 0.5
ECV, CMR (%) — categories 29.0 (24.5, 35.5) 31.0 (26.0, 36.0) 28.5 (23.0, 34.0) 0.7
T2 (0=normal, 1=elevated) 19 (56%) 9 (50%) 10 (63%) 0.5
matt_for_sure_ischemic_lge 1 (25%) 1 (33%) 0 (0%) >0.9
LGE burden, CMR (% LV mass) 7 (3, 12) 7 (0, 10) 8 (4, 12) 0.5
CM outcome (1 = event)



    1 14 (100%) 6 (100%) 8 (100%)
LVEF, CMR (%) 59 (51, 64) 60 (53, 63) 58 (50, 68) 0.7
RVEF, CMR (%) 52 (48, 56) 52 (49, 54) 51 (45, 58) >0.9
LV wall thickness (AP), mm 10.00 (8.00, 11.00) 10.00 (8.00, 11.00) 11.00 (8.00, 11.00) 0.6
LV wall thickness (PL), mm 8.00 (7.00, 9.50) 8.00 (6.00, 9.00) 8.00 (7.00, 10.00) 0.4
Global radial strain, CMR (%) 26 (21, 36) 29 (21, 35) 23 (21, 36) 0.8
Global circumferential strain, CMR (%) -17.7 (-19.9, -14.2) -17.9 (-20.1, -13.8) -15.3 (-19.8, -14.2) >0.9
Global longitudinal strain (GLS), CMR (%) -13.6 (-15.5, -10.8) -14.6 (-17.3, -12.0) -13.0 (-15.3, -10.0) 0.2
Abnormal GLS 34 (85%) 15 (83%) 19 (86%) >0.9
MAPSE — anterior (mm) 10.0 (7.2, 12.4) 10.4 (5.9, 14.4) 9.7 (7.3, 11.7) 0.5
MAPSE — inferior (mm) 11.7 (9.7, 14.5) 13.1 (10.2, 14.6) 10.6 (8.9, 13.3) 0.2
MAPSE — mean (mm) 10.2 (8.5, 12.5) 11.6 (7.8, 14.0) 10.0 (8.6, 12.0) 0.4
remove_variavle NA (NA, NA) NA (NA, NA) NA (NA, NA)
1 Median (Q1, Q3); n (%)
2 Wilcoxon rank sum test; NA; Fisher’s exact test; Pearson’s Chi-squared test

Removed all “at risk”

Characteristic Overall
N = 361
negative
N = 241
positive
N = 121
p-value2
Age at time of sample (years) 76 (69, 79) 75 (69, 78) 77 (73, 81) 0.4
Female sex 0 (NA%) 0 (NA%) 0 (NA%)
Race


0.5
     4 (11%) 3 (13%) 1 (8.3%)
    black/aa 4 (11%) 4 (17%) 0 (0%)
    white 28 (78%) 17 (71%) 11 (92%)
Ethnicity


0.5
     4 (11%) 3 (13%) 1 (8.3%)
    hispanic/latinx 1 (2.8%) 0 (0%) 1 (8.3%)
    not hispanic/latinx 31 (86%) 21 (88%) 10 (83%)
Number of immune-related adverse events (iRAEs) 1 (1, 2) 1 (1, 2) 1 (1, 3) 0.9
AT1R antibody interpretation


<0.001
    negative 24 (67%) 24 (100%) 0 (0%)
    positive 12 (33%) 0 (0%) 12 (100%)
Death 11 (34%) 9 (43%) 2 (18%) 0.2
Heart failure at baseline 6 (19%) 3 (14%) 3 (27%) 0.4
Heart failure at outcome


0.7
     4 (11%) 3 (13%) 1 (8.3%)
    0 23 (64%) 14 (58%) 9 (75%)
    1 9 (25%) 7 (29%) 2 (17%)
Arrhythmia at baseline


>0.9
    0 24 (67%) 16 (67%) 8 (67%)
    1 12 (33%) 8 (33%) 4 (33%)
Arrhythmia at outcome


>0.9
    0 22 (61%) 15 (63%) 7 (58%)
    1 14 (39%) 9 (38%) 5 (42%)
New arrhythmia 13 (36%) 8 (33%) 5 (42%) 0.7
ACE inhibitor or ARB use


0.3
    0 24 (67%) 14 (58%) 10 (83%)
    0 on admission, started lisinopril 3/17/2022 1 (2.8%) 1 (4.2%) 0 (0%)
    1 11 (31%) 9 (38%) 2 (17%)
Spironolactone (aldactone) use



    0 36 (100%) 24 (100%) 12 (100%)
SGLT2 inhibitor use 3 (8.3%) 3 (13%) 0 (0%) 0.5
Beta-blocker use


>0.9
    0 19 (53%) 12 (50%) 7 (58%)
    1 15 (42%) 10 (42%) 5 (42%)
    1 (atenolol) 1 (2.8%) 1 (4.2%) 0 (0%)
    1 (nadolol) 1 (2.8%) 1 (4.2%) 0 (0%)
myocarditis_severty_adjudication


0.8
    1 4 (11%) 2 (8.3%) 2 (17%)
    1 (asx) 1 (2.8%) 1 (4.2%) 0 (0%)
    1 (hypotension but likely 2/2 to other conditions) 1 (2.8%) 0 (0%) 1 (8.3%)
    2 4 (11%) 3 (13%) 1 (8.3%)
    2 (cardiac MRI with signs of prior myocarditis but not active) 1 (2.8%) 1 (4.2%) 0 (0%)
    2 (new DOE) 1 (2.8%) 0 (0%) 1 (8.3%)
    2 (normal echo, ? cardiogenic syncope) 1 (2.8%) 0 (0%) 1 (8.3%)
    2/3 (Formal MRI didn't read myocarditis, but per notes Dr. Kwan thought was consistent) 1 (2.8%) 1 (4.2%) 0 (0%)
    3 13 (36%) 8 (33%) 5 (42%)
    3 (cMRI suggestive and TTE with known apical akinesis iso scar) 1 (2.8%) 1 (4.2%) 0 (0%)
    3 (EF 25 - 30% w/ sx but no instability) 1 (2.8%) 1 (4.2%) 0 (0%)
    3 (MRI read equivocal but seems real enough) 1 (2.8%) 1 (4.2%) 0 (0%)
    4 6 (17%) 5 (21%) 1 (8.3%)
Prolonged immunosuppression 18 (62%) 10 (50%) 8 (89%) 0.10
Number of non-HLA positive beads 5 (1, 17) 1 (1, 5) 23 (15, 29) 0.010
Metastatic cancer 7 (70%) 5 (63%) 2 (100%) >0.9
Hypertension 30 (94%) 21 (100%) 9 (82%) 0.11
Hyperlipidemia 26 (81%) 16 (76%) 10 (91%) 0.6
Coronary artery disease 23 (72%) 13 (62%) 10 (91%) 0.11
Diabetes mellitus 8 (25%) 7 (33%) 1 (9.1%) 0.2
Heart failure 10 (31%) 6 (29%) 4 (36%) 0.7
Valvular disease 2 (6.3%) 2 (9.5%) 0 (0%) 0.5
Ipilimumab (IPI) 7 (22%) 3 (14%) 4 (36%) 0.2
Nivolumab (NIVO) 10 (31%) 6 (29%) 4 (36%) 0.7
Pembrolizumab (PEMBRO) 19 (59%) 12 (57%) 7 (64%) >0.9
Durvalumab (DURVA) 4 (13%) 2 (9.5%) 2 (18%) 0.6
Atezolizumab (ATEZO) 3 (9.4%) 2 (9.5%) 1 (9.1%) >0.9
Days from initial ICI exposure to presentation 82 (35, 455) 67 (35, 239) 145 (50, 1,009) 0.2
Pulse-dose steroids given 29 (91%) 20 (95%) 9 (82%) 0.3
Prolonged steroid course after pulse 17 (53%) 11 (52%) 6 (55%) >0.9
Mycophenolate mofetil (MMF) 19 (59%) 13 (62%) 6 (55%) 0.7
Abatacept 13 (41%) 9 (43%) 4 (36%) >0.9
IVIG 8 (25%) 4 (19%) 4 (36%) 0.4
Infliximab 2 (6.3%) 2 (9.5%) 0 (0%) 0.5
Tofacitinib 7 (22%) 6 (29%) 1 (9.1%) 0.4
Any immunosuppression escalation 18 (56%) 10 (48%) 8 (73%) 0.3
Number of immunosuppression escalations 1.00 (0.00, 1.00) 0.00 (0.00, 1.00) 1.00 (0.00, 2.00) 0.2
LVEF (%) — clinical 58 (54, 62) 54 (41, 59) 64 (58, 64) 0.023
RVEF (%) — clinical 49 (44, 52) 46 (39, 50) 58 (50, 66) 0.040
Cardiomyopathy etiology


0.3
     9 (30%) 5 (25%) 4 (40%)
    0 1 (3.3%) 1 (5.0%) 0 (0%)
    both 1 (3.3%) 0 (0%) 1 (10%)
    ischemic 1 (3.3%) 1 (5.0%) 0 (0%)
    ischemic_nonischemic_both_sheet_4 3 (10%) 1 (5.0%) 2 (20%)
    nonischemic 15 (50%) 12 (60%) 3 (30%)
Other irAEs


0.6
     34 (94%) 23 (96%) 11 (92%)
    myositis, MG myocarditis 1 (2.8%) 0 (0%) 1 (8.3%)
    pneumonitis 1 (2.8%) 1 (4.2%) 0 (0%)
Native T1, CMR (ms) 991 (957, 1,015) 1,002 (982, 1,016) 953 (938, 977) 0.2
ECV, CMR (%) — categories 27.0 (26.0, 36.0) 31.0 (26.0, 36.0) 26.0 (23.0, 40.0) >0.9
T2 (0=normal, 1=elevated) 14 (52%) 9 (50%) 5 (56%) >0.9
matt_for_sure_ischemic_lge 1 (25%) 1 (33%) 0 (0%) >0.9
LGE burden, CMR (% LV mass) 8 (0, 13) 7 (0, 10) 11 (4, 15) 0.3
CM outcome (1 = event)



    1 8 (100%) 6 (100%) 2 (100%)
LVEF, CMR (%) 60 (54, 64) 60 (53, 63) 62 (58, 68) 0.2
RVEF, CMR (%) 52 (49, 55) 52 (49, 54) 53 (48, 58) 0.5
LV wall thickness (AP), mm 10.00 (8.00, 11.00) 10.00 (8.00, 11.00) 9.00 (6.50, 11.00) 0.7
LV wall thickness (PL), mm 8.00 (7.00, 9.00) 8.00 (6.00, 9.00) 8.50 (7.00, 10.50) 0.3
Global radial strain, CMR (%) 29 (22, 36) 29 (21, 35) 34 (23, 36) 0.3
Global circumferential strain, CMR (%) -18.1 (-20.1, -14.7) -17.9 (-20.1, -13.8) -18.6 (-20.0, -15.1) 0.5
Global longitudinal strain (GLS), CMR (%) -14.7 (-16.7, -11.9) -14.6 (-17.3, -12.0) -14.9 (-15.5, -10.8) >0.9
Abnormal GLS 25 (83%) 15 (83%) 10 (83%) >0.9
MAPSE — anterior (mm) 10.2 (6.8, 12.9) 10.4 (5.9, 14.4) 10.1 (7.3, 12.2) 0.8
MAPSE — inferior (mm) 12.4 (9.8, 14.5) 13.1 (10.2, 14.6) 10.5 (9.7, 12.9) 0.3
MAPSE — mean (mm) 10.9 (8.6, 12.8) 11.6 (7.8, 14.0) 10.9 (8.9, 12.0) 0.8
remove_variavle NA (NA, NA) NA (NA, NA) NA (NA, NA)
1 Median (Q1, Q3); n (%)
2 Wilcoxon rank sum test; NA; Fisher’s exact test; Pearson’s Chi-squared test; Wilcoxon rank sum exact test

Clean table for abstract

Characteristic Overall
N = 361
negative
N = 241
positive
N = 121
p-value2
Age at time of sample (years) 76 (69, 79) 75 (69, 78) 77 (73, 81) 0.4
Female sex 0 (NA%) 0 (NA%) 0 (NA%)
Race


0.5
     4 (11%) 3 (13%) 1 (8.3%)
    black/aa 4 (11%) 4 (17%) 0 (0%)
    white 28 (78%) 17 (71%) 11 (92%)
Ethnicity


0.5
     4 (11%) 3 (13%) 1 (8.3%)
    hispanic/latinx 1 (2.8%) 0 (0%) 1 (8.3%)
    not hispanic/latinx 31 (86%) 21 (88%) 10 (83%)
Death 11 (34%) 9 (43%) 2 (18%) 0.2
Prolonged immunosuppression 18 (62%) 10 (50%) 8 (89%) 0.10
Number of non-HLA positive beads 5 (1, 17) 1 (1, 5) 23 (15, 29) 0.010
Hypertension 30 (94%) 21 (100%) 9 (82%) 0.11
Hyperlipidemia 26 (81%) 16 (76%) 10 (91%) 0.6
Coronary artery disease 23 (72%) 13 (62%) 10 (91%) 0.11
Diabetes mellitus 8 (25%) 7 (33%) 1 (9.1%) 0.2
Heart failure 10 (31%) 6 (29%) 4 (36%) 0.7
LGE burden, CMR (% LV mass) 8 (0, 13) 7 (0, 10) 11 (4, 15) 0.3
LVEF, CMR (%) 60 (54, 64) 60 (53, 63) 62 (58, 68) 0.2
RVEF, CMR (%) 52 (49, 55) 52 (49, 54) 53 (48, 58) 0.5
LV wall thickness (AP), mm 10.00 (8.00, 11.00) 10.00 (8.00, 11.00) 9.00 (6.50, 11.00) 0.7
LV wall thickness (PL), mm 8.00 (7.00, 9.00) 8.00 (6.00, 9.00) 8.50 (7.00, 10.50) 0.3
Global radial strain, CMR (%) 29 (22, 36) 29 (21, 35) 34 (23, 36) 0.3
Global circumferential strain, CMR (%) -18.1 (-20.1, -14.7) -17.9 (-20.1, -13.8) -18.6 (-20.0, -15.1) 0.5
Global longitudinal strain (GLS), CMR (%) -14.7 (-16.7, -11.9) -14.6 (-17.3, -12.0) -14.9 (-15.5, -10.8) >0.9
Abnormal GLS 25 (83%) 15 (83%) 10 (83%) >0.9
1 Median (Q1, Q3); n (%)
2 Wilcoxon rank sum test; NA; Fisher’s exact test