Table 5

Multilevel logistic regression models for being absent at baseline but recorded at follow-up in intervention compared to control group

CVD risk
OR (95% CI)
BMI
OR (95% CI)
Waist circumference
OR (95% CI)
Alcohol
OR (95% CI)
Blood pressure
OR (95% CI)
Smoking
OR (95% CI)
Cholesterol
OR (95% CI)
Allocation
 Control (reference) (n=8033)1.01.01.01.01.01.01.0
 Intervention (n=13 815)1.50 (1.04 to 2.18)1.28 (0.87 to 1.88)2.52 (1.30 to 4.91)2.19 (1.04 to 4.64)1.12 (0.79 to 1.58)2.24 (1.17 to 4.29)1.29 (0.88 to 1.91)
Patient age
 <50-year (reference)1.01.01.01.01.01.01.0
 50–59-year1.15 (1.04 to 1.27)0.95 (0.53 to 1.70)0.68 (0.59 to 0.79)1.10 (0.97 to 1.25)0.85 (0.77 to 0.94)0.97 (0.85 to 1.11)1.22 (1.11 to 1.34)
 >59 years1.13 (1.01 to 1.26)0.96 (0.85 to 1.08)0.78 (0.66 to 0.92)1.12 (0.97 to 1.29)0.55 (0.49 to 0.63)0.93 (0.80 to 1.08)1.08 (0.97 to 1.20)
Patient gender
 Male (reference)1.01.01.01.01.01.01.0
 Female0.99 (0.99 to 1.09)0.96 (0.87 to 1.06)0.94 (0.82 to 1.07)0.98 (0.88 to 1.10)1.04 (0.95 to 1.15)0.93 (0.83 to 1.05)1.06 (0.98 to 1.15)
Number of general practitioners (GP) in practice
 1–3 GPs (reference)1.01.01.01.01.01.01.0
 >3 GPs0.89 (0.58 to 1.37)1.16 (0.78 to 1.72)1.64 (0.75 to 3.59)1.95 (0.81 to 4.68)0.64 (0.43 to 0.96)1.06 (0.54 to 2.06)0.86 (0.54 to 1.35)
Number of practice nurses (PN) in practice
 1or less PN (reference)1.01.01.01.01.01.01.0
 >1 PN1.51 (0.99 to 2.31)1.28 (0.87 to 1.88)1.32 (0.62 to 2.82)0.83 (0.36 to 1.96)1.61 (1.08 to 2.40)0.92 (0.48 to 1.76)1.35 (0.87 to 2.11)
Percentage of GPs/PNs working in primary care >10 years
 0 (reference)1.01.01.01.01.01.01.0
 >0 or more0.72 (0.37 to 1.40)1.02 (0.55 to 1.88)1.01 (0.30 to 3.36)0.90 (0.24 to 3.41)0.55 (0.30 to 1.03)0.41 (0.15 to 1.14)1.34 (0.67 to 2.71)
 Between practice variance (SE)0.201 (0.062)0.159 (0.051)0.640 (0.197)0.869 (0.251)0.174 (0.054)0.482 (0.145)0.231 (0.069)
 Percentage of Variance explained*14.832.346.933.111.7037.2
  • Proportion of GPs/PNs working in primary care >10 years included as a continuous variable.

  • *Explained ‘between practice’ variance using the variance in the baseline model as reference. Bold indicates a statistically significant difference (p<0.05) in the OR for the independent variable compared with its reference variable.