Table 4 Comparison between type 2 diabetes prevalence registered in the primary care EHR database and self-reported prevalence from a health survey
From: Validity of type 2 diabetes diagnosis in a population-based electronic health record database
Diabetes prevalence in 2003 (health survey) | Population in primary care EHR database in 2005 | Expected cases in 2005 according to the health survey prevalence | Registered cases in primary care EHR (code T90) in June 2005 | Ratio between registered and expected cases | ||
|---|---|---|---|---|---|---|
% | n | n | n | % | % | |
Men | ||||||
35–44 years | 1.5 | 48,244 | 723 | 525 | 1.1 | 72.6 |
45–54 years | 4.7 | 38,169 | 1803 | 1568 | 4.1 | 87.0 |
55–64 years | 11.1 | 30,974 | 3442 | 3226 | 10.4 | 93.7 |
65–74 years | 17.7 | 23,003 | 4064 | 3643 | 15.8 | 89.7 |
75–84 years | 20.3 | 15,567 | 3166 | 2311 | 14.8 | 73.0 |
35–84 years | 155,957 | 13,198 | 11,273 | 85.4 | ||
Age-adjusted prevalence (95% CI%) | 8.5 | 7.2 | ||||
(7.1–9.8) | (7.2–7.3) | |||||
Women | ||||||
35–44 years | 0.6 | 44,431 | 269 | 290 | 0.7 | 107.7 |
45–54 years | 2.1 | 36,546 | 771 | 708 | 1.9 | 91.8 |
55–64 years | 4.2 | 30,832 | 1282 | 1970 | 6.4 | 153.7 |
65–74 years | 11.2 | 25,855 | 2904 | 3121 | 12.1 | 107.5 |
75–84 years | 16 | 22,261 | 3557 | 3288 | 14.8 | 92.5 |
35–84 years | 159,925 | 8783 | 9377 | 106.8 | ||
Age-adjusted prevalence (95% CI) | 5.5 | 5.9 | ||||
(4.4–6.6) | (5.8–5.9) | |||||