Table 2.
COM-B measures by HP—mean and SD
| Total | General practitioner | Practice nurse | Cancer surgeon | Oncologist | Cancer nurse specialist | Test statistic, P value | |
| No of participants | 506 | 103 | 102 | 100 | 102 | 99 | |
| Recommend e-cigarettes always/often, N (%) | 97 (19.2) | 24 (23.3) | 36 (35.3) | 9 (9) | 16 (15.7) | 12 (12.1) | χ2=28.90, <0.001 |
| Capability | |||||||
| Know status | 4.72 (0.59) | 4.75 (0.48) | 4.78 (0.46) | 4.81 (0.46) | 4.75 (0.60) | 4.52 (0.81) | F=4.17, 0.002* |
| General smoking knowledge | 3.40 (1.03) | 3.80 (0.86) | 3.75 (1.08) | 3.10 (1.00) | 3.17 (1.03) | 3.19 (0.95) | F=12.09, <0.001* |
| E-cig knowledge | 2.34 (.99) | 2.40 (0.89) | 2.45 (1.07) | 2.21 (0.94) | 2.54 (1.05) | 2.11 (0.95) | F=3.32, 0.011 |
| Opportunity | |||||||
| Time | 2.60 (1.03) | 2.46 (0.95) | 2.87 (.94) | 2.39 (1.00) | 2.29 (1.06) | 3.02 (1.00) | F=10.47, <0.001* |
| Patient relationships | 2.51 (.68) | 2.45 (0.72) | 2.52 (0.66) | 2.59 (0.64) | 2.49 (0.67) | 2.52 (0.72) | F=0.59, 0.668 |
| Social norms | 3.00 (0.72) | 2.98 (0.86) | 3.18 (0.75) | 2.85 (0.66) | 3.08 (0.65) | 2.91 (0.64) | F=3.36, 0.010 |
| Motivation | |||||||
| Engagement with patients who smoke | 2.77 (0.61) | 2.90 (0.55) | 3.21 (0.55) | 2.60 (0.54) | 2.55 (0.58) | 2.59 (0.55) | F=26.13, <0.001* |
| Effectiveness in helping cancer pts | 2.83 (1.50) | 2.86 (1.48) | 3.39 (1.43) | 2.49 (1.54) | 2.81 (1.45) | 2.57 (1.44) | F=5.89, <0.001* |
| Importance of HP role | 4.35 (0.76) | 4.48 (0.62) | 4.60 (0.60) | 4.33 (0.83) | 4.20 (0.81) | 4.15 (0.84) | F=6.40, <0.001* |
| Lack of evidence N (%) | 242 (47.8) | 57 (55.3) | 51 (50) | 44 (44) | 41 (40.2) | 50 (50.5) | χ2=5.60, 0.231 |
| Attitudes | 3.22 (0.61) | 3.23 (0.64) | 3.39 (0.62) | 3.08 (0.61) | 3.26 (0.53) | 3.13 (0.59) | F=0.4.04, 0.003 |
| Harm | 3.16 (0.68) | 3.25 (0.63) | 3.15 (0.67) | 3.18 (0.66) | 3.22 (0.71) | 3.01 (0.71) | F=1.32, 0.263 |
| Better than smoking | 3.86 (0.96) | 4.00 (1.00) | 3.84 (1.00) | 3.82 (.81) | 4.07 (0.86) | 3.56 (1.05) | F=4.39, 0.002* |
| Comfortable discussing smoking in general | 4.40 (0.76) | 4.45 (0.75) | 4.44 (0.71) | 4.49 (0.72) | 4.39 (0.81) | 4.24 (0.80) | F=1.59, 0.175 |
| Comfortable discussing e-cigs | 2.91 (1.16) | 3.09 (1.13) | 3.04 (1.23) | 2.65 (1.17) | 3.00 (1.11) | 2.76 (1.12) | F=2.79, 0.026 |
*Significant for F tests when multiple comparisons taken into consideration, accepted p value corrected to 0.003.
COM-B, capability, opportunity and motivation to perform a behaviour.