Table 2 Performance measures of administrative data (Ontario Health Insurance Program + Ontario Drug Benefit Program) in identifying influenza vaccination status, using the Canadian Community Health Survey as reference standard, stratified by respondent characteristics

Total (n = 31,390)

Total Vaccinated in CCHS = 13,358 (43%)

8034

274

17,758

5324

60.1%

(59.3%−61.0%)

98.5%

(98.3%−98.7%)

96.7%

(96.3%−97.1%)

76.9%

(76.4%−77.5%)

Canadian Community Health Survey Year

 2013 (n = 16,229)

Total Vaccinated in CCHS = 6,625 (41%)

3795

146

9458

2830

57.3% (56.1%−58.5%)

98.5% (98.2%−98.7%)

96.3% (95.7%−96.9%)

77.0% (76.2%−77.7%)

 2014 (n = 15,161)

Total Vaccinated in CCHS = 6,733(44%)

4239

128

8300

2494

63.0% (61.8%−64.1%)

98.5% (98.2%−98.7%)

97.1% (96.5%−97.6%)

76.9% (76.1%−77.7%)

Sex

 Female (n = 17,267)

Total Vaccinated in CCHS = 7,824 (45%)

4728

143

9300

3096

60.4%

(59.3%−61.5%)

98.5% (98.2%−98.7%)

97.1% (96.6%−97.5%)

75.0% (74.3%−75.8%)

 Male (n = 14,123)

Total Vaccinated in CCHS = 5,534 (39%)

3306

131

8458

2228

59.7% (58.4%−61.0%)

98.5% (98.2%−98.7%)

96.2% (95.5%−96.8%)

79.2% (78.4%−79.9%)

Age group

 12–17 (n = 2,486)) Total Vaccinated in CCHS = 694 (28%)

224

31

1761

470

32.3% (28.8%−35.9%)

98.3% (97.6%−98.8%)

87.8% (83.2%−91.6%)

78.9% (77.2%−80.6%)

 18–49 (n = 11,405)) Total Vaccinated in CCHS = 2,595 (23%)

1121

78

8732

1474

43.2% (41.3%−45.1%)

99.1% (98.9%−99.3%)

93.5% (92.0%−94.8%)

85.6% (84.9%−86.2%)

 50–64 (n = 8,384)) Total Vaccinated in CCHS = 3,559 (42%)

1959

68

4757

1600

55.0% (53.4%−56.7%)

98.6% (98.2%−98.9%)

96.7% (95.8%−97.4%)

74.8% (73.7%−75.9%)

 < 65 (n = 22,275)

Total Vaccinated in CCHS = 6,848 (31%)

3304

177

15,250

3544

48.3% (47.1%−49.4%)

98.9% (98.7%−99.0%)

94.9% (94.1%−95.6%)

81.1% (80.6%−81.7%)

 65 + (n = 9,115)

Total Vaccinated in CCHS = 6,510 (71%)

4730

97

2508

1780

72.7% (71.6%−73.7%)

96.3% (95.5%−97.0%)

98.0% (97.6%−98.4%)

58.5% (57.0%−60.0%)

Residence

 Urban area of residence (n = 24,708)

Total Vaccinated in CCHS = 10,503 (43%)

6435

236

13,969

4068

61.3% (60.3%−62.2%)

98.3% (98.1%−98.5%)

96.5% (97.0%−96.9%)

77.5% (76.8%−78.1%)

 Rural area of residence (n = 6,661)

Total Vaccinated in CCHS = 2,851(43%)

1598

38

3772

1253

56.1% (54.2%−57.9%)

99.0% (98.6%−99.3%)

97.7% (96.8%−98.4%)

75.1% (73.8%−76.3%)

Has a Regular Doctor

 Yes (n = 29,254)

Total Vaccinated in CCHS = 12,919 (44%)

7894

262

16,073

5025

61.1% (60.3%−62.0%)

98.4% (98.2%−98.6%)

96.8% (96.4%−97.2%)

76.2% (75.6%−76.8%)

 No (n = 2,100)

Total Vaccinated in CCHS = 429 (20%)

137

12

1659

292

31.9% (27.5%−36.6%)

99.3% (98.8%−99.6%)

92.0% (86.4%−95.8%)

85.0% (83.4%−86.6%)

Risk factors (comorbidities) for influenza complication

 No Risk Factor (n = 14,446)

Total Vaccinated in CCHS = 3,968 (27%)

1852

107

10,371

2116

46.7% (45.1%−48.2%)

99.0% (98.8%−99.2%)

94.5% (93.4%−95.5%)

83.1% (82.4%−83.7%)

 Any Risk Factor (n = 16,944)

Total Vaccinated in CCHS = 9,390 (55%)

6182

167

7387

3208

65.8% (64.9%−66.8%)

97.8% (97.4%−98.1%)

97.4% (97.0%−97.8%)

69.7% (68.8%−70.6%)

 Anemia (n = 1,696)

Total Vaccinated in CCHS = 1,051 (62%)

719

17

628

332

68.4% (65.5%−71.2%)

97.4% (95.8%−98.5%)

97.7% (96.3%−98.7%)

65.4% (62.3%−68.4%)

 Arrhythmia (n = 1,226)

Total Vaccinated in CCHS = 902 (74%)

637

9

315

265

70.6% (67.5%−73.6%)

97.2% (94.8%−98.7%)

98.6% (97.4%−99.4%)

54.3% (50.2%−58.4%)

 Asthma (n = 4,622)

Total Vaccinated in CCHS = 2,091 (45%)

1271

52

2479

820

60.8% (58.7%−62.9%)

98.0% (97.3%−98.5%)

96.1% (94.9%−97.1%)

75.1% (73.6%−76.6%)

 Cancer (n = 2,298)

Total Vaccinated in CCHS = 1,580 (69%)

1112

21

697

468

70.4% (68.1%−72.6%)

97.1% (95.6%−98.2%)

98.2% (97.2%−98.9%)

59.8% (57.0%−62.7%)

 Cardiovascular Disease: Arrhythmia/HTN/IHD/MI/Stroke (n = 3,580)

Total Vaccinated in CCHS = 2,520 (70%)

1761

30

1030

759

69.9% (68.1%−71.7%)

97.2% (96.0%−98.1%)

98.3% (97.6%−98.9%)

57.6% (55.3%−59.9%)

 COPD (n = 3,293)

Total Vaccinated in CCHS = 2,142 (65%)

1470

27

1124

672

68.6% (66.6%−70.6%)

97.7% (96.6%−98.5%)

98.2% (97.4%−98.8%)

62.6% (60.3%−64.8%)

 Dementia (n = 264)

Total Vaccinated in CCHS = 207 (78%)

146

10

47

61

70.5% (63.8%−76.7%)

82.5% (70.1%−91.3%)

93.6% (88.5%−96.9%)

43.5% (34.0%−53.4%)

 Hypertension (n = 10,122)

Total Vaccinated in CCHS = 6,580 (65%)

4566

99

3443

2014

69.4% (68.3%−70.5%)

97.2% (96.6%−97.7%)

97.9% (97.4%−98.3%)

63.1% (61.8%−64.4%)

 Immunocompromised (n = 490)

Total Vaccinated in CCHS = 370 (76%)

274

6

114

96

74.1% (69.3%−78.5%)

95.0% (89.4%−98.1%)

97.9% (95.4%−99.2%)

54.3% (47.3%−61.2%)

 Ischemic heart disease (n = 2,308)

Total Vaccinated in CCHS = 1,643 (71%)

1147

19

646

496

69.8% (67.5%−72.0%)

97.1% (95.6%−98.3%)

98.37% (97.5%−99.0%)

56.6% (53.6%−59.5%)

 Myocardial Infarction (n = 1,024)

Total Vaccinated in CCHS = 722 (71%)

510

8

294

212

70.6% (67.2%−73.9%)

97.4% (94.9%−98.9%)

98.5% (97.0%−99.3%)

58.1% (53.7%−62.4%)

 Stroke (n = 581)

Total Vaccinated in CCHS = 403 (69%)

287

6

172

116

71.2% (66.5%−75.6%)

96.6% (92.8%−98.8%)

98.0% (95.6%−99.2%)

59.7% (53.8%−65.4%)