Table 1.

Characteristics of cohort

Population characteristicsTotal patient number
n = 60
Sex, n (%)  
Male 27 (45) 
Female 33 (55) 
Median year of birth 2008 (1976-2017) 
Mutation type, n (%)  
RAG 1 46 (77) 
RAG 2 14 (23) 
Homozygous 19 (32) 
Compound heterozygous 41 (68) 
Median age at first symptoms, y (range) 1.4 (0-15.4) 
Median age at diagnosis, y (range) 3.3 (0-39.9) 
Diagnosed by newborn or family screening, n (%) 8 (13) 
Infection before HSCT, n (%) 47 (78) 
Active infection before HSCT, n (%) 17 (29) out of 58 
Presence of autoimmunity and/or granuloma before HSCT, n (%) 47 (78) 
Autoimmunity 43 (72) 
Autoimmune cytopenia 33 (55) 
Other autoimmune disease 24 (41) 
Granuloma 11 (18) 
Active autoimmunity and/or granuloma before HSCT, n (%) 32 (58) out of 55 
Malignancy/lymphoma, n (%) 2 (3) 
Organ damage, n (%) 34 (57) 
Lung 30 (50) 
Liver 10 (17) 
Kidney 6 (10) 
Other 9 (15) 
Population characteristicsTotal patient number
n = 60
Sex, n (%)  
Male 27 (45) 
Female 33 (55) 
Median year of birth 2008 (1976-2017) 
Mutation type, n (%)  
RAG 1 46 (77) 
RAG 2 14 (23) 
Homozygous 19 (32) 
Compound heterozygous 41 (68) 
Median age at first symptoms, y (range) 1.4 (0-15.4) 
Median age at diagnosis, y (range) 3.3 (0-39.9) 
Diagnosed by newborn or family screening, n (%) 8 (13) 
Infection before HSCT, n (%) 47 (78) 
Active infection before HSCT, n (%) 17 (29) out of 58 
Presence of autoimmunity and/or granuloma before HSCT, n (%) 47 (78) 
Autoimmunity 43 (72) 
Autoimmune cytopenia 33 (55) 
Other autoimmune disease 24 (41) 
Granuloma 11 (18) 
Active autoimmunity and/or granuloma before HSCT, n (%) 32 (58) out of 55 
Malignancy/lymphoma, n (%) 2 (3) 
Organ damage, n (%) 34 (57) 
Lung 30 (50) 
Liver 10 (17) 
Kidney 6 (10) 
Other 9 (15) 

“Other” organ damage refers to gastrointestinal complications (n = 7), steroid-induced diabetes (n = 1), and vasculitis-associated epilepsy (n = 1). For details of organ damage please refer to supplemental Table 6.

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