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Table 2 Baseline characteristics of the 1,407,060 women in the study population who lived in Ontario’s Metropolitan areas for the study period April 1, 2010-March 31, 2012

From: Breast cancer screening disparities among urban immigrants: a population-based study in Ontario, Canada

Variable Value Identified Immigrants (CIC) Long-Term Residents (LTR) Recent Registrants (RR) Total P-value
   N = 183,332 N = 1,160,050 N = 63,678 N = 1,407,060  
Age Mean ± SD 58.47 ± 4.96 59.73 ± 5.06 58.58 ± 4.97 59.51 ± 5.06 <.001
Neighbourhood Income Quintile 1 46,786 (25.5 %) 185,528 (16.0 %) 12,224 (19.2 %) 244,538 (17.4 %) <.001
  2 42,476 (23.2 %) 217,448 (18.7 %) 11,942 (18.8 %) 271,866 (19.3 %)  
  3 38,008 (20.7 %) 227,020 (19.6 %) 12,218 (19.2 %) 277,246 (19.7 %)  
  4 32,983 (18.0 %) 250,884 (21.6 %) 13,196 (20.7 %) 297,063 (21.1 %)  
  5 22,722 (12.4 %) 274,939 (23.7 %) 13,808 (21.7 %) 311,469 (22.1 %)  
  Missing 357 (0.2 %) 4,231 (0.4 %) 290 (0.5 %) 4,878 (0.3 %)  
Rural Missing 54 (0.0 %) 584 (0.1 %) 28 (0.0 %) 666 (0.0 %) <.001
  N 180,538 (98.5 %) 979,001 (84.4 %) 56,293 (88.4 %) 1,215,832 (86.4 %)  
  Y 2,740 (1.5 %) 180,465 (15.6 %) 7,357 (11.6 %) 190,562 (13.5 %)  
RUBsa 0–1 14,983 (8.2 %) 81,301 (7.0 %) 7,932 (12.5 %) 104,216 (7.4 %) <.001
  2 19,297 (10.5 %) 135,999 (11.7 %) 7,517 (11.8 %) 162,813 (11.6 %)  
  3 113,006 (61.6 %) 682,675 (58.8 %) 35,691 (56.0 %) 831,372 (59.1 %)  
  4+ 36,046 (19.7 %) 260,075 (22.4 %) 12,538 (19.7 %) 308,659 (21.9 %)  
ADG Mean ± SD 6.07 ± 3.54 6.04 ± 3.57 5.63 ± 3.73 6.02 ± 3.58 <.001
ADGb 0 10,992 (6.0 %) 46,210 (4.0 %) 6,158 (9.7 %) 63,360 (4.5 %) <.001
  1–5 73,144 (39.9 %) 509,832 (43.9 %) 26,407 (41.5 %) 609,383 (43.3 %)  
  6–9 68,070 (37.1 %) 408,761 (35.2 %) 21,265 (33.4 %) 498,096 (35.4 %)  
  10+ 31,126 (17.0 %) 195,247 (16.8 %) 9,848 (15.5 %) 236,221 (16.8 %)  
Periodic health exam No 77,957 (42.5 %) 545,245 (47.0 %) 31,544 (49.5 %) 654,746 (46.5 %) <.001
  Yes 105,375 (57.5 %) 614,805 (53.0 %) 32,134 (50.5 %) 752,314 (53.5 %)  
GP visits Mean ± SD 5.29 ± 5.09 4.32 ± 4.99 4.16 ± 5.02 4.44 ± 5.01 <.001
Physician enrollment model FHG/CCM 103,187 (56.3 %) 365,975 (31.5 %) 24,968 (39.2 %) 494,130 (35.1 %) <.001
  FHN 107 (0.1 %) 7,986 (0.7 %) 175 (0.3 %) 8,268 (0.6 %)  
  FHO 40,064 (21.9 %) 375,618 (32.4 %) 17,047 (26.8 %) 432,729 (30.8 %)  
  FHT 12,468 (6.8 %) 267,771 (23.1 %) 9,891 (15.5 %) 290,130 (20.6 %)  
  No-Care 7,814 (4.3 %) 40,832 (3.5 %) 5,361 (8.4 %) 54,007 (3.8 %)  
  No-Grp 18,722 (10.2 %) 72,567 (6.3 %) 5,047 (7.9 %) 96,336 (6.8 %)  
  Other 970 (0.5 %) 29,301 (2.5 %) 1,189 (1.9 %) 31,460 (2.2 %)  
Physician sex Missing 8,361 (4.6 %) 49,423 (4.3 %) 5,951 (9.3 %) 63,735 (4.5 %) <.001
  F 66,562 (36.3 %) 442,882 (38.2 %) 25,021 (39.3 %) 534,465 (38.0 %)  
  M 108,409 (59.1 %) 667,745 (57.6 %) 32,706 (51.4 %) 808,860 (57.5 %)  
Physician training Domestic 92,969 (50.7 %) 927,987 (80.0 %) 41,210 (64.7 %) 1,062,166 (75.5 %) <.001
  International 81,672 (44.5 %) 180,827 (15.6 %) 16,310 (25.6 %) 278,809 (19.8 %)  
  Missing 8,691 (4.7 %) 51,236 (4.4 %) 6,158 (9.7 %) 66,085 (4.7 %)  
  1. aRUB = Resource Utilization Bands are part of the Johns Hopkins Adjusted Clinical Group® (ACG®) Case Mix System. The RUBs are used to categorize patients based on their expected use of health care resources and range from 0 (lowest expected health care costs) to 5 (highest expected health care costs)
  2. bADG = Aggregated Diagnosis Groups are part of the Johns Hopkins Adjusted Clinical Group® (ACG®) case-mix system. The ADGs are used to measure the level of co-morbidity and range from 0 (no diagnosis group) to 32 (32 distinct diagnosis groups)