Table 1 Subject characteristics according to fish consumption (n=1181)

From: Dietary fish, n-3 polyunsaturated fatty acid consumption, and depression risk in Japan: a population-based prospective cohort study

  Total fish consumption  
  Lowest Second Third Highest Pdifference
Median (g per day) 57.2 83.8 111.1 152.6  
Information at screening
 Age, years±s.d. 72.7±5.5 73.3±5.6 73.6±5.6 73.5±5.8 0.23
 Male (%) 43.6 39.3 39.2 44.1 0.46
 History of depression (yes), % 2.0 2.7 1.1 2.7 0.46
 History of diabetes (yes), % 9.2 11.9 10.1 8.1 0.47
 History of cancer (yes), % 12.5 12.2 14.7 10.8 0.56
 History of stroke (yes), % 3.3 4.8 4.6 3.4 0.72
 History of myocardial infarction (yes), % 2.0 1.0 1.4 3.4 0.18
Information from 2005 survey
 Current smoker, % 20.8 14.6 15.4 20.9 0.07
 Regular drinker (yes), % 28.4 29.2 27.3 25.6 0.88
 Physical activity (METs), mean±s.d. 39.3±9.5 37.8±9.7 36.9±10.1 36.8±9.5 <0.01
 n-3 PUFA, mean±s.d. (g per day) 2.3±0.5 2.8±0.5 3.2±0.5 3.9±0.7 <0.0001
 Eicosapentaenoic acid, mean±s.d. (mg per day) 199.1±61.8 316.3±55.7 418.3±78.4 603.6±167.9 <0.0001
 Docosahexaenoic acid, mean±s.d. (mg per day) 363.1±112.6 551.5±91.7 718.6±129.3 1013.0±262.0 <0.0001
 Docosapentaenoic acid, mean±s.d. (mg per day) 67.5±18.8 97.7±16.3 125.7±23.0 173.8±43.3 <0.0001
 Alpha-linoleic acid, mean±s.d. (mg per day) 1577.6±448.3 1693.3±400.4 1733.5±358.8 1812.4±342.7 <0.0001
 n-6 PUFA, mean±s.d. (g per day) 11.5±2.6 12.2±2.6 12.4±2.1 12.8±2.1 <0.0001
 Linoleic acid, mean±s.d. (g per day) 11.2±2.6 11.9±2.6 12.1±2.1 12.4±2.1 <0.0001
  1. Abbreviations: MET, metabolic equivalents of task; PUFA, polyunsaturated fatty acid.