Table 3.
Associations of rs1893217 and rs17388568 with response in anti-CTLA-4 and anti-PD-1 under different genetic modelsa
Additive model | Dominant model | Recessive model | ||||
---|---|---|---|---|---|---|
OR (95% CI) | p value | OR (95% CI) | p value | OR (95% CI) | p value | |
Anti-CTLA-4b rs1893217 | ||||||
AA | Reference | Reference | Reference | Reference | Reference | Reference |
AG | 2.26 (1.21–4.20) | 0.01 | 2.79 (1.36–5.73) | 0.005 | 1.89 (0.35–10.11) | 0.45 |
GG | 5.11 (2.97–9.51) | 0.01 | ||||
Anti-PD-1c rs17388568 | ||||||
GG | Reference | Reference | Reference | Reference | Reference | Reference |
GA | 0.38 (0.21–0.67) | 0.0008* | 0.26 (0.12–0.53) | 0.0002* | 0.38 (0.11–1.33) | 0.13 |
AA | 0.14 (0.08–0.25) | 0.0008* |
Asterisk (*) indicates p value surpassing the Bonferroni multiple testing adjustment (p < 0.002)
aModels adjusted for age, sex and treatment drug (ipilimumab or tremelimumab; nivolumab or pembrolizumab)
bN controls = 78, N cases = 135 (controls: ICI responders; cases: ICI non-responders); for the dominant model: the genotype group comparisons were as follows: AA (reference) vs AG/GG; for the recessive model: AA/AG (reference) vs GG
cN controls = 88, N cases = 81 (Controls: ICI responders; Cases: ICI non-responders) ; for the dominant model: the genotype group comparisons were as follows: GG (reference) vs GA/AA; for the recessive model: GG/GA (reference) vs AA