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Table 3 Marginal effects on likelihood of attending Health Check from single-level and multi-level logistic regression

From: Randomised controlled trial comparing uptake of NHS Health Check in response to standard letters, risk-personalised letters and telephone invitations

Predictor variables

Marginal effects

Single-level

Multi-level

Invitation method (ref. standard letter)

 Telephone

.162***

.180***

(.0190)

(.0374)

 Personalised letter

.0118

.0400**

(.0173)

(.0182)

Age (years)

.00660***

.00611***

(.00144)

(.00151)

Gender

.0434***

.0443***

(male = 0, female = 1)

(.0157)

(.0164)

Deprivation quintile

.0441***

.0202**

(1 = most to 5 = least deprived)

(.00633)

(.00843)

Area morphology (urban = 0, rural = 1)

−.0149

−.0357*

(.0184)

(.0195)

CVD risk (% 10-year score)

−.00854***

−.00738***

(.00270)

(.00270)

Practice size

7.30e-06***

3.17e-06

(2.69e-06)

(1.38e-05)

Health Checks outside working

−.0375**

−.0828

hours (no = 0, yes = 1)

(.0148)

(.0786)

Telephone invitations outside working

−.108***

−.0685

hours (no = 0, yes = 1)

(.0194)

(.0973)

  1. Standard errors in parentheses
  2. *** p < .01, ** p < .05, * p < .1