Table 2 |.
Multivariable adjusted associations of the blood pressure PRS from the general population with hypertension among childhood cancer survivors
PRS | CCSS Original cohort (790 hypertensive survivors; 2782 hypertension-free survivors) | CCSS Expansion cohort (160 hypertensive survivors; 1729 hypertension-free survivors) | SJLIFE (728 hypertensive survivors; 1806 hypertension-free survivors) | Combined sample (1678 hypertensive survivors; 6317 hypertension-free survivors) | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
OR (95% CI) | P | C-index | OR (95% CI) | P | C-index | OR (95% CI) | P | C-index | OR (95% CI) | P | C-index | |
per SD change | 1.31 (1.20–1.42) | <0.001 | 0.736 | 1.33 (1.12–1.58) | <0.001 | 0.747 | 1.39 (1.26–1.54) | <0.001 | 0.788 | 1.34 (1.26–1.43) | <0.001 | 0.785 |
1st decile | Reference | |||||||||||
2–5th deciles | 1.17 (0.85–1.62) | 0.329 | 0.736 | 1.83 (0.93–3.63) | 0.082 | 0.745 | 1.18 (0.81–1.73) | 0.385 | 0.787 | 1.24 (0.99–1.56) | 0.066 | 0.784 |
6–8th deciles | 1.44 (1.04–2.00) | 0.030 | 1.89 (0.95–3.77) | 0.072 | 1.76 (1.20–2.58) | 0.004 | 1.61 (1.27–2.03) | <0.001 | ||||
9th decile | 1.89 (1.29–2.79) | 0.001 | 2.29 (1.03–5.10) | 0.042 | 2.32 (1.46–3.70) | <0.001 | 2.08 (1.58–2.75) | <0.001 | ||||
10th decile | 2.63 (1.80–3.83) | <0.001 | 3.03 (1.39–6.60) | 0.005 | 2.60 (1.66–4.06) | <0.001 | 2.66 (2.03–3.48) | <0.001 |
PRS, polygenic risk score derived from 895 blood pressure loci in Evangelou et al.(13); SD, standard deviation; OR, odds ratio; CI, confidence interval; Covariates included age at childhood cancer diagnosis, age at last follow-up, sex, body mass index, smoking status (current or former vs. never), physical activity (vigorous intensity exercise in metabolic equivalents), cohort (CCSS original cohort, CCSS expansion cohort and SJLIFE), alkylating agents, heavy metals, abdominal radiation, hypothalamic-pituitary axis radiation, total body radiation and nephrectomy