IJCS | Volume 32, Nº2, March/April 2019

128 Table 1 - Baseline characteristics Variable All (n = 542) 2011 (n = 45) 2012 (n = 56) 2013 (n = 88) 2014 (n = 84) 2015 (n = 121) 2016 (n = 148) P trend Age 60.4 ± 12.1 58.5 ± 13.7 59.1 ± 11.5 61.5 ± 12.4 60.8 ± 13.0 58.9 ± 11.1 61.9 ± 11.8 0.16 Male gender 349 (64.4) 28 (62.2) 32 (57.1) 57 (64.8) 57 (67.9) 80 (66.1) 95 (64.2) 0.49 Caucasian 474 (87.5) 40 (88.9) 51 (91.2) 79 (89.8) 76 (90.5) 105 (86.8) 123 (83.1) 0.08 Risk factors Hypertension 344 (63.5) 22 (48.9) 38 (67.9) 57 (64.8) 54 (64.3) 77 (63.6) 96 (64.9) 0.14 Diabetes 135 (24.9) 9 (20) 11 (19.6) 14 (15.9) 19 (22.6) 33 (27.3) 48 (33.1) 0.005 Current smoking 276 (50.9) 23 (51.1) 27 (48.2) 51 (58) 42 (51.2) 63 (52.1) 70 (47.3) 0.49 Obesity (BMI ≥ 30 kg/m 2 ) 103 (23.6) 3 (11.5) 11 (36. 7) 13 (19.1) 12 (16.0) 27 (24.5) 37 (29.1) 0.13 COPD 22 (4.1) 0 (0) 1 (1.8) 5 (5.7) 6 (7.1) 4 (3.3) 6 (4.1) 0.44 CKD 20 (3.7) 3 (6.7) 0 (0) 3 (3.4) 1 (1.2) 5 (4.1) 8 (5.4) 0.40 Cardiovascular history MI 52 (9.6) 2 (4.4) 7 (12.5) 8 (9.1) 3 (3.6) 13 (10.7) 19 (12.8) 0.17 Stroke 32 (5.9) 3 (6.7) 3 (5.4) 7 (8) 4 (4.8) 7 (5.8) 8 (5.4) 0.66 Clinical status Heart rate (bpm) 79.1 (18.2) 78.24 (16.76) 80.18 (16.30) 78.28 (17.54) 77.24 (18.08) 78.7 (20.91) 80.75 (17.5) 0.71 SBP < 80 mmHg 67 (12.4) 8 (17.8) 4 (7.1) 9 (10.2) 10 (11.9) 22 (12.8) 14 (9.7) 0.97 Killip I 368 (67.9) 34 (75.6) 45 (80.4) 64 (72.7) 58 (69) 69 (57) 98 (66.2) 0.01 II 105 (19.4) 6 (13.3) 7 (12.5) 13 (14.8) 16 (19) 28 (23.1) 35 (23.8) 0.01 III 8 (1.7) 0 (0) 2 (3.6) 2 (2.3) 0 (0) 3 (2.5) 1 (0.7) 0.63 IV 60 (11.1) 5 (11.1) 2 (3.6) 9 (10.2) 10 (11.9) 21 (17.4) 13 (8.8) 0.39 TIMI score 4.16 (2.42) 4.11 (2.66) 3.44 (1.79) 4.23 (2.29) 4.18 (2.55) 4.41 (2.66) 4.61 (2.68) 0.18 Anterior wall MI 239 (44.1) 24 (53.3) 25 (44.6) 41 (46.6) 35 (41.7) 48 (39.7) 66 (44.6) 0.30 Inferior wall MI 261 (48.2) 20 (44.4) 24 (42.9) 43 (48.9) 26 (46.4) 69 (57) 79 (53.4) 0.06 Pain-to-door (hours) 4 (2.5-6) 4.25 (3-7.25) 4 (2-6) 4 (3-6) 4 (3-7) 4.4 (2.86-7.95) 3.3 (1.5-5.1) 0.001 Door-to-balloon (min) 68 (55-90) 80 (60-120) 72 (60-90) 60 (44.25-83.75) 63.5 (46.75-73.25) 68 (57.75-90.25) 67 (56.5-91.5) 0.002 Admission ED 172 (31.7) 9 (20) 22 (39.9) 40 (45.5) 35 (41.7) 31 (25.6) 35 (23.6) 0.04 EMS 146 (26.9) 6 (13.3) 11 (19.6) 17 (19.3) 25 (29.8) 38 (31.4) 49 (33.1) 0.01 Hospital length of stay 5 (4-8) 5 (3-9) 4 (3-6) 5 (4-8) 5 (4-7.75) 6 (4-8) 5 (4-9) 0.56 Values are expressed as mean ± standard deviation, median (interquartile range) or number (%). BMI: body mass index; COPD: chronic obstructive pulmonary disease; CKD: chronic kidney disease; MI: myocardial infarction; SBP: systolic blood pressure; ED: Emergency department; EMS: Emergency medical service Machado et al. Care changes in primary PCI Int J Cardiovasc Sci. 2019;32(2)125-133 Original Article