User groups of skincare products per cancer type | n | Cancer cases | Age-adjusted HR (95% CI) | Multivariable HR (95% CI) | ptrend |
---|---|---|---|---|---|
Premenopausal breast cancera | |||||
Non−/Light users | 7988 | 238 | 1.00 | 1.00 | 0.56 |
Moderate users | 4642 | 146 | 1.05 (0.86,1.30) | 1.05 (0.85,1.29) | Â |
Frequent/heavy users | 7215 | 237 | 1.11 (0.93,1.33) | 1.10 (0.92,1.32) | Â |
Postmenopausal breast cancerb | |||||
Non-users | 1549 | 49 | 1.12 (0.84,1.49) | 1.14 (0.85,1.52) | 0.27 |
Light users | 32,379 | 922 | 1.00 | 1.00 | Â |
Moderate users | 22,762 | 656 | 1.00 (0.90, 1.10) | 0.99 (0.89,1.09) | Â |
Frequent users | 29,874 | 854 | 0.99 (0.90, 1.09) | 0.97 (0.88,1.07) | Â |
Heavy users | 1752 | 45 | 0.89 (0.66, 1.20) | 0.87 (0.65,1.18) | Â |
Endometrial cancerc | |||||
Non−/Light users | 25,774 | 213 | 1.00 | 1.00 | 0.63 |
Moderate users | 16,556 | 98 | 0.70 (0.55,0.88) | 0.77 (0.61,0.98) | Â |
Frequent/heavy users | 23,156 | 163 | 0.83 (0.68,1.02) | 0.97 (0.79,1.20) | Â |