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Table 2 The association of vitamin D and calcium supplementation with survival from selected cancers in women

From: The effect of pre-diagnostic vitamin D supplementation on cancer survival in women: a cohort study within the UK Clinical Practice Research Datalink

  Deaths Cases Person- Basic model Adjusted model
    Years HR 95 % CI HR 95 % CI
Breast cancer
 3+ prescriptions 228 842 2408.5 1.01 0.79 to 1.29 1.02 0.79 to 1.32
 1–2 prescriptions 86 318 974.9 1   1  
 Any 314 1160 3383.3 0.80 0.71 to 0.90 0.78 0.70 to 0.88
 None 1789 9952 38168.7 1   1  
Colorectal cancer
 3+ prescriptions 191 426 929.7 0.82 0.61 to 1.10 0.81 0.59 to 1.11
 1–2 prescriptions 61 130 282.1 1   1  
 Any 252 556 1203.8 0.91 0.79 to 1.04 0.90 0.78 to 1.04
 None 1474 3566 10090.6 1   1  
Lung cancer
 3+ prescriptions 323 418 384.0 0.91 0.73 to 1.12 0.86 0.70 to 1.07
 1–2 prescriptions 120 141 134.1 1   1  
 Any 443 559 518.1 1.05 0.96 to 1.16 1.06 0.96 to 1.17
 None 2313 2793 2954.1 1   1  
Gynaecologic cancer
 3+ prescriptions 98 220 538.1 0.74 0.49 to 1.10 0.84 0.59 to 1.30
 1–2 prescriptions 36 72 152.7 1   1  
 Any 134 292 690.9 0.87 0.72 to 1.05 0.89 0.73 to 1.07
 None 1017 2687 8033.1 1   1  
  1. The basic model is adjusted for age and period; the adjusted model is further adjusted for smoking, alcohol, BMI and area-level deprivation