Table 4.

(iii) Training conditioned by age.

Age groups	FT-G1	FT-I-G7	FT-I-G2	FT-SaBN-G7	FT-SaBN-G2
B	74.9 ± 6.8	74.1 ± 6.6 ${}^{{\mathrm{G}}_1}$	74.8 ± 6.2 ${}^{{\mathrm{G}}_1}$	72.2 ± 7.7	72.6 ± 7.7
C	75.0 ± 9.8	74.9 ± 9.2 ${}^{{\mathrm{G}}_2}$	75.9 ± 9.1 ${}^{{\mathrm{G}}_1}$	74.8 ± 8.9	75.6 ± 10.1
A	82.7 ± 13.7	80.0 ± 14.6 ${}^{{\mathrm{G}}_3}$	82.8 ± 13.6 ${}^{{\mathrm{G}}_2}$	82.3 ± 13.7	82.0 ± 14.0
YA	80.8 ± 11.5	80.6 ± 11.6 ${}^{{\mathrm{G}}_4}$	80.6 ± 11.6 ${}^{{\mathrm{G}}_2}$	80.3 ± 11.9	79.9 ± 11.9
MA	80.4 ± 7.8	79.90 ± 8.0 ${}^{{\mathrm{G}}_5}$	79.8 ± 8.2 ${}^{{\mathrm{G}}_2}$	79.6 ± 8.0	79.4 ± 8.3
E	75.7 ± 10.1	74.2 ± 10.7 ${}^{{\mathrm{G}}_6}$	74.9 ± 10.2 ${}^{{\mathrm{G}}_2}$	74.5 ± 10.6	73.9 ± 10.9
OE	75.2 ± 11.7	73.9 ± 11.0 ${}^{{\mathrm{G}}_7}$	74.9 ± 11.3 ${}^{{\mathrm{G}}_2}$	73.8 ± 11.7	74.0 ± 11.3
avg	77.9 ± 10.7	77.0 ± 10.8	77.6 ± 10.7	76.9 ± 11.0	76.8 ± 11.1

Performance of U-Sleep-v1 on a single model fine-tuned on all the training set of the seven BSDB groups (FT-G1); on seven/two models fine-tuned on the independent training set of each group with G = 7 (FT-I-G7) and G = 2 (FT-I-G2) respectively; and on a single model fine-tuned on all the training set of the seven/two BSDB groups conditioned by G = 7 (FT-SaBN-G7) and by G = 2 (FT-SaBN-G2) groups respectively. All the fine-tuned models are evaluated on the associated test set of each group (data split in Supplementary Table 8). We report the F1-score (%F1), specifically the mean value and the standard deviation (μ ± σ) computed across the recordings. B Babies (0–3 years), C Children (4–12 years), A Adolescents (13–18 years), YA Young Adults (19–39 years), MA Middle-aged adults (40–59 years), E Elderly (60–69 years), OE Old Elderly (≥ 70 years). When G = 2 we have the following two groups G₁ = {B ∪ C}, G₂ = {A ∪ YA ∪ MA ∪ E ∪ OE}, further details in Supplementary notes: Age analysis.