Table 1 Person-time contribution and observed colonoscopy rates across index-positive FOBT participant characteristics from Ontario’s ColonCancerCheck program, October 2008 through February 2011

Age at index FOBT+ (years)

  50 to 59

36,381

(44.8)

16.4

  60 to 69

32,235

(39.7)

16.4

  70 to 74

12,667

(15.6)

15.5

Sex

  Females

36,600

(45.0)

16.2

  Males

44,684

(55.0)

16.3

Urban SES quintiles/rural status

  (lowest) Urban quintile 1

13,308

(16.4)

15.4

  Urban quintile 2

15,320

(18.8)

16.4

  Urban quintile 3

14,898

(18.3)

17.2

  Urban quintile 4

14,805

(18.2)

16.7

  (highest) Urban quintile 5

13,315

(16.4)

17.1

  Rural

9,631

(11.8)

13.9

LHIN^b

  (Highest) LHIN 1

3,644

(4.5)

11.7

  LHIN 2

6,444

(7.9)

13.5

  LHIN 3

4,749

(5.8)

16.6

  LHIN 4

9,034

(11.1)

12.5

  LHIN 5

9,150

(11.3)

16.9

  LHIN 6

1,297

(1.6)

12.4

  LHIN 7

4,010

(4.9)

13.3

  LHIN 8

4,086

(5.0)

17.4

  LHIN 9

3,481

(4.3)

11.1

  LHIN 10

5,861

(7.2)

16.4

  LHIN 11

6,211

(7.6)

17.1

  LHIN 12

2,022

(2.5)

20.0

  LHIN 13

10,385

(12.8)

18.1

  (Lowest) LHIN 14

10,919

(13.4)

21.6

ADG score^c

  0 or 1

9,169

(11.3)

16.3

  2 or 3

25,476

(31.3)

16.5

  4 or 5

21,637

(26.6)

16.8

  6 or 7

13,438

(16.5)

16.4

  ≥8

11,559

(14.2)

14.7

Usual provider continuity index^d

  Low

30,399

(37.4)

16.0

  High

50,885

(62.6)

16.5

Repeat FOBT^e

  Yes

7,421

(9.1)

4.2

  No

73,860

(90.9)

17.5

Prior colonoscopy

  None

67,328

(82.8)

17.2

  0 to 2 years

5,283

(6.5)

8.1

  2 to 5 years

8,921

(11.0)

13.4