Table 3 Characteristics of the study population in Ontario, stratified by immigrant status and region of origin

N (%)

41,456 (88.3)

5495 (11.7)

1636 (3.5)

933 (2.0)

752 (1.6)

513 (1.1)

968 (2.1)

261 (0.6)

121 (0.3)

311 (0.7)

 Baseline UPC index score

0 visits

3022 (7.3)

565 (10.3)

136 (8.3)

103 (11.0)

62 (8.2)

91 (17.7)

91 (9.4)

25 (9.6)

19 (15.7)

38 (12.2)

1–2 visits

4496 (10.8)

509 (9.3)

156 (9.5)

115 (12.3)

65 (8.6)

33 (6.4)

62 (6.4)

17 (6.5)

18 (14.9)

43 (13.8)

UPC < =.75(low)

10,703 (25.8)

1796 (32.7)

507 (31.0)

289 (31.0)

270 (35.9)

160 (31.2)

333 (34.4)

109 (41.8)

38 (31.4)

90 (28.9)

UPC > 0.75(high)

23,235 (56.0)

2625 (47.8)

837 (51.2)

426 (45.7)

355 (47.2)

229 (44.6)

482 (49.8)

110 (42.1)

46 (38.0)

140 (45.0)

 Primary care visits in 6 mths prior to diagnosis

Mean ± SD

3.4 ± 3.3

4.0 ± 3.2

4.0 ± 3.0

3.5 ± 3.1

4.2 ± 3.2

4.2 ± 3.5

4.5 ± 3.4

3.9 ± 3.5

3.1 ± 3.7

3.2 ± 3.0

Median (IQR)

3 (1–4)

3 (2–5)

3 (2–5)

3 (2–5)

3 (2–5)

3 (2–6)

4 (2–6)

3 (2–5)

2 (1–4)

3 (1–4)

 Age at diagnosis

Mean ± SD

61.9 ± 13.6

53.2 ± 12.6

51.8 ± 11.2

54.3 ± 13.1

53.1 ± 13.0

53.4 ± 12.2

54.6 ± 13.1

52.7 ± 13.0

52.1 ± 11.2

53.7 ± 13.3

 Co-morbidities (ADGs)

0 -- 5

20,321 (49.0)

2760 (50.2)

823 (50.3)

495 (53.1)

340 (45.2)

252 (49.1)

471 (48.7)

132 (50.6)

69 (57.0)

111 (35.7)

6 -- 9

14,942 (36.0)

1994 (36.3)

617 (37.7)

320 (34.3)

309 (41.1)

175 (34.1)

355 (36.7)

95 (36.4)

37 (30.6)

86 (27.7)

10 +

6193 (14.9)

741 (13.5)

196 (12.0)

118 (12.6)

103 (13.7)

86 (16.8)

142 (14.7)

34 (13.0)

15 (12.4)

47 (15.1)

 Income quintile

1 (lowest)

6720 (16.2)

1411 (25.7)

414 (25.3)

210 (22.5)

232 (30.9)

124 (24.2)

264 (27.3)

91 (34.9)

17 (14.0)

59 (19.0)

2

7917 (19.1)

1173 (21.3)

387 (23.7)

167 (17.9)

206 (27.4)

81 (15.8)

214 (22.1)

39 (14.9)

15 (12.4)

64 (20.6)

3

8006 (19.3)

1099 (20.0)

330 (20.2)

160 (17.1)

147 (19.5)

102 (19.9)

239 (24.7)

55 (21.1)

20 (16.5)

46 (14.8)

4

9017 (21.8)

1032 (18.8)

287 (17.5)

218 (23.4)

100 (13.3)

112 (21.8)

175 (18.1)

42 (16.1)

27 (22.3)

71 (22.8)

5

9646 (23.3)

776–780

211–215

176–180

67 (8.9)

94 (18.3)

76 (7.9)

34 (13.0)

42 (34.7)

71 (22.8)

Missing

150 (0.4)

<=5

<=5

<=5

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

0 (0.0)

 Stage at diagnosis

I

15,732 (37.9)

1736 (31.6)

586 (35.8)

294 (31.5)

197 (26.2)

164 (32.0)

250 (25.8)

84 (32.2)

52 (43.0)

109 (35.0)

II

14,624 (35.3)

1983 (36.1)

602 (36.8)

338 (36.2)

288 (38.3)

197 (38.4)

321 (33.2)

95 (36.4)

35 (28.9)

107 (34.4)

III

5271 (12.7)

837 (15.2)

196 (12.0)

176 (18.9)

131 (17.4)

73 (14.2)

161 (16.6)

38 (14.6)

18 (14.9)

44 (14.1)

IV

1849 (4.5)

210 (3.8)

43 (2.6)

38 (4.1)

43 (5.7)

13 (2.5)

42 (4.3)

13 (5.0)

6 (5.0)

12 (3.9)

Unknown

3980 (9.6)

729 (13.3)

209 (12.8)

87 (9.3)

93 (12.4)

66 (12.9)

194 (20.0)

31 (11.9)

10 (8.3)

39 (12.5)

 Screen detected

n (%) screen-detected

11,876 (28.6)

1081 (19.7)

295 (18.0)

191 (20.5)

131 (17.4)

121 (23.6)

194 (20.0)

52 (19.9)

28 (23.1)

69 (22.2)

 Diagnostic Interval (Screened patients)

Median (IQR)

28 (15–47)

33 (19–55)

38 (23–60)

31 (17–49)

33 (21–58)

30 (20–57)

33 (19–50)

33 (21–49)

22 (9–35)

28 (13–48)

90th percentile

73

86

91

76

99

107

84

74

76

107

 Diagnostic Interval (Symptomatic patients)

Median (IQR)

33 (15–66)

38 (19–76)

44 (22–82)

35 (16–73)

41 (21–78)

32 (15–73)

35 (17–64)

40 (19–77)

32 (16–68)

36 (15–77)

90th percentile

126

130

136

127

140

120

118

112

142

133