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Table 1 Characteristics of Primary Care Physicians (PCPs) and screen eligible patients 1996-2005

From: Social disparities in the use of colonoscopy by primary care physicians in Ontario

Characteristics    1996    1997    1998    1999    2000    2001    2002    2003    2004    2005
  No (%)    No (%)    No (%)    No (%)    No (%)    No (%)    No (%)    No (%)    No (%)    No (%)
Primary Care Physician characteristics
Number of physicians 7955    8008    7960    8013    8077    8133    8174    8273    8365    8419
Male 5642 (70.9)    5628 (70.3)    5553 (69.8)    5521 (68.9)    5519 (68.3)    5509 (67.7)    5482 (67.1)    5500 (66.5)    5519 (66.0)    5512 (65.5)
Age group           
   < 45 3906 (49.1)    3806 (47.5)    3646 (45.8)    3512 (43.8)    3411 (42.2)    3274 (40.3)    3172 (38.8)    3108 (37.6)    3016 (36.1)    2886 (34.28)
   >= 45 4049 (50.9)    4202 (52.5)    4314 (54.2)    4501 (56.2)    4666 (57.8)    4859 (59.7)    5002 (61.2)    5165 (62.4)    5349 (63.9)    5533 (65.7)
Years in practice           
   < 20 4277 (53.8)    4191 (52.3)    4055 (50.9)    3940 (49.2)    3851 (47.7)    3732 (45.9)    3639 (44.5)    3561 (43.0)    3483 (41.6)    3333 (39.6)
   >= 20 3656 (45.9)    3787 (47.4)    3894 (48.9)    4062 (50.7)    4213 (52.2)    4390 (53.9)    4527 (55.4)    4702 (56.8)    4870 (58.2)    5071 (60.2)
Canadian Medical Graduates 6087 (76.5)    6155 (76.9)    6156 (77.3)    6218 (77.6)    6280 (77.8)    6330 (77.8)    6358 (77.8)    6437 (77.8)    6484 (77.5)    6482 (77.0)
Rural area of practice 882 (11.1)    872 (10.9)    860 (10.8)    882 (11.0)    898 (11.1)    808 (9.9)    826 (10.1)    829 (10.0)    855 (10.2)    835 (9.9)
Screen eligible patient count           
   < 200 4665 (58.6)    4628 (57.7)    4437 (55.7)    4373 (54.6)    4322 (53.5)    4321 (53.1)    4298 (52.6)    4369 (52.8)    4370 (52.2)    4337 (51.5)
   >= 200 3290 (41.4)    3380 (42.2)    3523 (44.3)    3640 (45.4)    3755 (46.5)    3812 (46.9)    3876 (47.4)    3904 (47.2)    3995 (47.8)    4082 (48.5)
Screen eligible patient characteristics, Averaged at the level of each Primary Care Physician
Median age           
   50-59 3068 (38.6)    3468 (43.3)    3748 (47.1)    3958 (49.4)    4323 (53.5)    4578 (56.3)    4742 (58.0)    4932 (59.6)    5084 (60.8)    5352 (63.6)
   60-61 2193 (27.6)    2152 (26.9)    2061 (25.9)    2078 (25.9)    2024 (25.1)    1988 (24.4)    2056 (25.2)    2052 (24.8)    2083 (24.9)    1965 (23.3)
   > 61 2694 (33.9)    2388 (29.8)    2151 (27.0)    1977 (24.7)    1730 (21.4)    1567 (19.3)    1376 (16.8)    1289 (15.6)    1198 (14.3)    1102 (13.1)
% male pts           
   < 35 2028 (25.5)    2056 (25.7)    2068 (25.9)    2104 (26.3)    2159 (26.7)    2182 (26.8)    2177 (26.6)    2189 (26.5)    2188 (26.2)    2180 (25.9)
   35-50 3192 (40.1)    3049 (38.1)    2974 (37.4)    2829 (35.3)    2854 (35.3)    2777 (34.1)    2810 (34.4)    2813 (34.0)    2841 (33.9)    2813 (33.4)
   > 50 2735 (34.4)    2903 (36.3)    2918 (36.7)    3080 (38.4)    3064 (37.9)    3174 (39.0)    3187 (38.9)    3271 (39.5)    3336 (39.9)    3426 (40.7)
% of with any comorbidities           
   < 10 1717 (21.6)    1814 (22.7)    1851 (23.3)    1911 (23.9)    1990 (24.6)    2093 (25.7)    2288 (27.9)    2524 (30.5)    2794 (33.4)    3087 (36.7)
   10-15 2715 (34.1)    2799 (34.9)    2861 (35.9)    2923 (36.5)    3016 (37.3)    3019 (37.1)    3020 (36.9)    3119 (37.7)    3236 (38.7)    3282 (38.9)
   > 15 3523 (44.3)    3395 (42.4)    3248 (40.8)    3179 (39.7)    3071 (38.0)    3021 (37.1)    2866 (35.1)    2630 (31.8)    2335 (27.9)    2050 (24.4)
Ecological variables           
% of low income quintile           
   < 10 2524 (31.7)    2560 (31.9)    2594 (32.6)    2460 (30.7)    2542 (31.5)    2565 (31.5)    2626 (32.1)    2724 (32.9)    2082 (24.9)    2152 (25.6)
   10-19 2453 (30.8)    2531 (31.6)    2539 (31.9)    2517 (31.4)    2574 (31.9)    2638 (32.4)    2685 (32.9)    2715 (32.8)    3013 (36.0)    3044 (36.2)
   >= 20 2978 (37.4)    2917 (36.4)    2827 (35.5)    3036 (37.9)    2961 (36.7)    2930 (36.0)    2863 (35.0)    2834 (34.3)    3270 (39.1)    3223 (38.3)
% of rural pts           
   < 1 2802 (35.2)    2766 (34.5)    2678 (33.6)    2862 (35.7)    2816 (34.9)    2732 (33.6)    2682 (32.8)    2695 (32.6)    2858 (34.2)    2831 (33.6)
   1-3 2118 (26.6)    2120 (26.5)    2140 (26.9)    2207 (27.5)    27.8)    2274 (27.9)    2285 (27.9)    2315 (27.9)    2299 (27.5)    2355 (27.9)
   > 3 3035 (38.2)    3122 (38.9)    3142 (39.5)    2944 (36.7)    3014 (37.3)    3127 (38.5)    3207 (39.2)    3263 (39.4)    3208 (38.4)    3233 (38.4)
% with less than high school education           
   20-24 1918 (24.1)    2001 (24.9)    1947 (24.5)    2025 (25.3)    1983 (24.6)    1992 (24.5)    1995 (24.4)    2024 (24.5)    2068 (24.7)    2089 (24.8)
   >= 25 3534 (44.4)    3484 (43.5)    3440 (43.2)    3356 (41.9)    3393 (42.0)    3328 (40.9)    3318 (40.6)    3311 (40.0)    3323 (39.7)    3340 (39.7)
   Missing 236 (2.9)    232 (2.9)    211 (2.7)    237 (2.9)    226 (2.8)    295 (3.6)    325 (3.9)    327 (3.9)    379 (4.5)    370 (4.4)
% of visible minority           
   < 10 2605 (32.8)    2571 (32.1)    2555 (32.1)    2509 (31.3)    2584 (31.9) 2610 (32.1)    2634 (32.2)    2619 (31.4)    2665 (31.9)    2716 (32.3)
   10-24 2713 (34.1)    2788 (34.8)    2771 (34.8)    2813 (35.1)    2817 (34.9)    2752 (33.8)    2756 (33.7)    2842 (34.4)    2782 (33.3)    2785 (33.1)
   >= 25 2401 (30.2)    2417 (30.2)    2423 (30.4)    2454 (30.6)    2450 (30.3)    2476 (30.4)    2459 (30.1)    2485 (30.0)    2539 (30.4)    2548 (30.3)
   Missing 236 (2.9)    232 (2.9)    211 (2.7)    237 (2.9)    226 (2.8)    295 (3.6)    325 (3.9)    327 (3.9)    379 (4.5)    370 (4.4)
% of non-immigrants           
   < 55 1780 (22.4)    1754 (21.9)    1765 (22.2)    1770 (22.1)    1757 (21.8)    1812 (22.3)    1827 (22.4)    1804 (21.8)    1896 (22.7)    1872 (22.2)
   55-74 2884 (36.3)    2943 (36.8)    2860 (35.9)    2902 (36.2)    2891 (35.8)    2869 (35.3)    2878 (35.2)    2931 (35.4)    2862 (34.2)    2870 (34.1)
   >= 75 3291 (41.4)    3311 (41.4)    3335 (41.9)    3341 (41.7)    3429 (42.5)    3452 (42.4)    3469 (42.4)    3538 (42.8)    3607 (43.1)    3677 (43.7)
% in labour force           
   < 65 2804 (35.3)    2699 (33.7)    2568 (32.3)    2477 (30.9)    2470 (30.6)    2353 (28.9)    2277 (27.9)    2247 (27.2)    2176 (26.0)    2121 (25.2)
   65-69 3039 (38.2)    3059 (38.2)    3092 (38.8)    3099 (38.7)    3057 (37.9)    3067 (37.7)    3066 (37.5)    3077 (37.2)    3118 (37.3)    3132 (37.2)
   >= 70 1876 (23.6)    2018 (25.2)    2089 (26.2)    2200 (27.5)    2324 (28.8)    2418 (29.7)    2506 (30.7)    2622 (31.7)    2692 (32.2)    2796 (33.2)
   Missing 236 (2.9)    232 (2.9)    211 (2.7)    237 (2.9)    226 (2.8)    295 (3.6)    325 (3.9)    327 (3.9)    379 (4.5)    370 (4.4)
% cannot speak English/French           
   < 2 2632 (33.1)    2614 (32.6)    2666 (33.5)    2647 (33.0)    2682 (33.2)    2724 (33.5)    2725 (33.3)    2761 (33.4)    2755 (32.9)    2804 (33.3)
   2-3 2972 (37.4)    3017 (37.7)    2948 (37.0)    2989 (37.3)    3040 (37.6)    2992 (36.8)    3033 (37.1)    3069 (37.1)    3091 (36.9)    3092 (36.7)
   > 3 2115 (26.6)    2145 (26.8)    2135 (26.8)    2140 (26.7)    2129 (26.4)    2122 (26.1)    2091 (25.6)    2116 (25.6)    2140 (25.6)    2153 (25.6)
   Missing 236 (2.9)    232 (2.9)    211 (2.7)    237 (2.9)    226 (2.8)    295 (3.6)    325 (3.9)    327 (3.9)    379 (4.5)    370 (4.4)