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Table 2 Distribution of malignant melanoma cases according to total, filtered, instant, and boiled coffee consumption at baseline, the Norwegian Women and Cancer Study, 1991–2013

From: Coffee consumption and the risk of malignant melanoma in the Norwegian Women and Cancer (NOWAC) Study

  Total coffee consumption Filtered coffee consumption Instant coffee consumption Boiled coffee consumption
n (%) n (%) n (%) n (%)
Light consumers 134 (17.6) 305 (40.0) 627 (82.3) 691 (90.7)
 ≤1 cup/day
Low-moderate consumers 234 (30.7) 218 (28.6) 57 (7.5) 45 (5.9)
 >1–3 cups/day
High-moderate consumers 239 (31.4) 160 (21.0) 51 (6.7) 16 (1.3)
 >3–5 cups/day
Heavy consumers 155 (20.3) 79 (10.4) 27 (3.5) 10 (2.1)
 >5 cups/day