... 170–174, 1 92, 193, 195, 199, 20 2, 20 6, 20 7, 20 9 21 7, 22 3, 22 5 22 7, 22 9, 23 0, 23 2, 23 4 24 0, 24 2, 25 0, 26 9 27 1, 27 3, 27 4, 27 6, 27 8, 28 3, 28 8 29 1, 29 4 29 7, 29 9, 300, 3 02 305, 309, 310, 3 12, 314, ... 34–36, 44, 173, 197, 20 2, 21 4, 21 6, 23 2, 27 9, 29 6, 29 9, 303–305, 314, 316, 317confounding 10, 30, 35, 72, 78, 134, 20 0, 20 2, 20 9, 21 1, 21 2, 21 6, 23 2, 23 5, 27 6, 29 5, 29 7, 29 8, 29 9–305, 317, 333congestive ... 118– 121 , 128 , 130–1 32, 165, 166, 171, 174, 187, 189, 191, 195, 199, 20 9, 21 2, 21 6, 23 2, 23 8, 23 9, 25 1, 25 2, 26 8, 27 1, 28 5 28 7, 29 4, 29 6, 29 8–300, 303, 304, 3 12, 313, 315, 317odds ratio 1 72 174,...