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Table 4 Factors associated with number of patients recruited in the project by dentists and dental hygienists (n = 37). Estimates of incidence rate ratios (IRRs) with 95 % CI obtained from the zero-inflated Poisson regression model

From: Using Theoretical Domains Framework (TDF) to understand implementation of a pragmatic clinical trial in Public Dental Service in Norway

Factors Unadjusted Adjusted
IRR (95 % CI) P-value IRR (95 % CI) P-value
Clinical experience (ref: ≤9 years)
≥ 10 years 0.96 (0.75, 1.23) 0.74   
First time involvement in research projects (ref: Yes)
No 1.23 (0.97, 1.57) 0.09 1.75 (1.29, 2.38) < 0.01
Clinic size (ref: Small)
Large 0.88 (0.69, 1.11) 0.27   
Position (ref: Part time)
Full time 1.20 (0.92, 1.56) 0.18   
Knowledge 1.21 (0.98, 1.48) 0.07 1.47 (1.03, 2.08) 0.04
Skills 1.86 (1.52, 2.27) < 0.01 1.20 (0.68, 2.08) 0.53
Professional role and identity 1.59 (1.31, 1.92) < 0.01 1.23 (0.78, 1.94) 0.37
Beliefs about capabilities 1.82 (1.51, 2.20) < 0.01 1.08 (0.78, 1.51) 0.64
Motivation 1.57 (1.24, 1.98) < 0.01 1.56 (0.99, 2.44) 0.06
Beliefs about consequences 2.74 (2.16, 3.48) < 0.01 2.46 (1.56, 3.88) < 0.01
Intentions 1.39 (1.13, 1.72) < 0.01 0.74 (0.50, 1.09) 0.13
Organizational resources 1.46 (1.24, 1.73) < 0.01 1.53 (1.20, 1.95) < 0.01
Environmental context 2.98 (2.46, 3.61) < 0.01 3.00 (2.10, 4.29) < 0.01
Social influence 1.04 (0.87, 1.25) 0.65