Appendix 6—table 1. Number of cells, sex, and age composition of the human aging lung datasets.

Dataset	No. of young cells	No. of old cells	No. of young donors	No. of old donors	Total cells
Raredon et al., 2019	7263	8589	Three females: 21, 32, 41, years old Two males: 22, 35 years old	Two females: 76, 88 years old Two males: 64, 65 years old	15,852
Travaglini et al., 2020 (HLCA)	7524	7524	One male: 46 years old	One male: 75 years old	15,048