Table 2 Predictive factors of at least three-combination treatment (vs not) in registered patients ⩾35 years old with a history of ischaemic heart disease (IHD) in DIN-LINK in 2005 (n = 50 740)
Nor%Unadj. OR* (95% CI)Adj. OR† (95% CI)
Sex
Men30 07916 46154.71.42 (1.36 to 1.48)1.09 (1.04 to 1.14)
Women20 661949345.911
Age (years)
35–6412 639711356.311
65–7415 630915258.61.11 (1.05 to 1.17)1.09 (1.03 to 1.15)
75–8416 195796749.20.76 (0.71 to 0.81)0.78 (0.73 to 0.83)
85–6276172227.40.30 (0.27 to 0.33)0.34 (0.31 to 0.37)
ACORN
Wealthy achievers14 235722950.811
Urban prosperity2382115448.40.88 (0.80 to 0.97)0.95 (0.85 to 1.05)
Comfortably off16 781860151.31.02 (0.97 to 1.07)1.06 (1.01 to 1.12)
Moderate means5440282551.91.01 (0.94 to 1.08)1.03 (0.96 to 1.10)
Hard pressed10 658552251.81.00 (0.94 to 1.06)1.07 (1.00 to 1.13)
Missing124462350.10.91 (0.77 to 1.06)0.95 (0.82 to 1.11)
Hypertension
No history27 43512 97147.311
Last code before 200521 71612 04255.51.37 (1.32 to 1.43)1.50 (1.43 to 1.57)
Code in 2005158994159.21.59 (1.40 to 1.80)1.76 (1.56 to 1.99)
Diabetes
No41 36220 21848.911
Diet in 20052542140855.41.30 (1.19 to 1.42)1.23 (1.12 to 1.35)
Receiving oral treatment in 20054846297761.41.65 (1.54 to 1.77)1.48 (1.38 to 1.60)
Receiving insulin in 20051990135167.92.18 (1.98 to 2.41)1.73 (1.57 to 1.92)
IHD type
Non-specific5840239841.111
Angina18 839790241.91.04 (0.94 to 1.14)1.06 (0.97 to 1.17)
MI15 237859856.41.85 (1.69 to 2.03)1.92 (1.76 to 2.10)
Revascularisation10 824705665.22.70 (2.44 to 2.97)2.39 (2.18 to 2.63)
Gender* type interaction‡
Non-specific in men1.30 (1.17 to 1.44)1.14 (1.03 to 1.26)
Angina in men0.95 (0.85 to 1.07)1.02 (0.91 to 1.14)
MI in men0.90 (0.80 to 1.01)0.90 (0.80 to 1.02)
Revasc. in men0.73 (0.64 to 0.83)0.84 (0.73 to 0.96)
  • * Odds ratio, adjusted for practice only.

  • †Odds ratio, adjusted for all other factors listed in the table (except interaction).

  • ‡Interaction shows the effect of being male on disease type. This was added to models * and †, respectively. Thus for subjects with a given IHD diagnosis the OR represents the odds of men receiving three-combination therapy versus the odds of women receiving such therapy.

  • MI, myocardial infarction.