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. 2015 Nov;21(11):10.18553/jmcp.2015.21.11.1054. doi: 10.18553/jmcp.2015.21.11.1054

TABLE 5.

Patient Characteristics of Prevalent Atrial Fibrillation Patients Who Were Nonswitchers, Comparing Adherent Patients to Nonadherent Patients

Follow-up Period Adherent (MPR ≥ 0.80) Nonadherent (MPR < 0.80)
6 Months 9 Months 12 Months 6 Months 9 Months 12 Months
Number of patients 1,593 847 349 1,120 741 338
Age, mean (SE) 64.7 (11.1) 65.3 (11.0) 65.2 (11.5) 60.5 (11.8) 60.4 (11.9) 60.4 (11.8)
Age, n (%)
  18-44 41 (2.6) 18 (2.1) 8 (2.3) 69 (6.2) 45 (6.1) 24 (7.1)
  45-64 876 (55.0) 455 (53.7) 191 (54.7) 744 (66.4) 500 (67.5) 225 (66.6)
  65-74 357 (22.4) 193 (22.8) 76 (21.8) 166 (14.8) 104 (14.0) 49 (14.5)
  75+ 319 (20.0) 181 (21.4) 74 (21.2) 141 (12.6) 92 (12.4) 40 (11.8)
Gender, n (%)
  Male 1,085 (68.1) 585 (69.1) 248 (71.1) 802 (71.6) 544 (73.4) 252 (74.6)
  Female 508 (31.9) 262 (30.9) 101 (28.9) 318 (28.4) 197 (26.6) 86 (25.4)
Region of residence, n (%)
  East 147 (9.2) 77 (9.1) 39 (11.2) 130 (11.6) 75 (10.1) 42 (12.4)
  Midwest 485 (30.4) 278 (32.8) 122 (35.0) 356 (31.8) 241 (32.5) 128 (37.9)
  South 780 (49.0) 394 (46.5) 143 (41.0) 526 (47.0) 351 (47.4) 129 (38.2)
  West 181 (11.4) 98 (11.6) 45 (12.9) 108 (9.6) 74 (10.0) 39 (11.5)
CHADS2, mean (SE) 1.62 (1.11) 1.63 (1.11) 1.63 (1.09) 1.27 (1.11) 1.25 (1.06) 1.25 (1.08)
CHADS2, n (%)
  0 230 (14.4) 124 (14.6) 50 (14.3) 291 (26.0) 186 (25.1) 84 (24.9)
  1 576 (36.2) 294 (34.7) 118 (33.8) 444 (39.6) 304 (41.0) 145 (42.9)
  2 478 (30.0) 260 (30.7) 115 (33.0) 248 (22.1) 168 (22.7) 70 (20.7)
  3 215 (13.5) 120 (14.2) 49 (14.0) 84 (7.5) 54 (7.3) 25 (7.4)
  4 71 (4.5) 38 (4.5) 12 (3.4) 39 (3.5) 24 (3.2) 10 (3.0)
  5 22 (1.4) 11 (1.3) 5 (1.4) 12 (1.1) 4 (0.5) 3 (0.9)
  6 1 (0.1) 0 (0.0) 0 (0.0) 2 (0.2) 1 (0.1) 1 (0.3)

Source: IMS Health LifeLink Health Plan Claims Database, 2010-2012.23

MPR = medication possession ratio; SE = standard error.