Skip to main content
. 2016 Jun;159:170–179. doi: 10.1016/j.socscimed.2016.05.005

Table 6.

Estimates of the effect of the QOF on treatments using polynomial regression.

Medication
Smoking cessation advice
Coeff. N. Coeff. N.
Model I:
With best polynomial order −0.04 (0.04) 23,346 0.02 (0.02) 21,418
Model II:
With second-best polynomial order 0.02 (0.03) 23,346 −0.0004 (0.01) 21,418

Std. errors in (). Weighted sample. All equations control for age, age squared, gender, educational qualification, number of children, marital status and income.