Table 1.
Descriptive statistics by trialists’ current practice (involving PPP in numerical aspects of trials or not/not sure) and in total
| Trialists who involve PPP in numerical aspects (n=116) | Trialists who do not involve PPP in numerical aspects or do not know (n=71) | Total | |
| Age (years) | |||
| 18–24 | 1 (0.9) | 1 (1.4) | 2 (1.1) |
| 25–34 | 32 (27.6) | 30 (42.3) | 62 (33.2) |
| 35–44 | 38 (32.8) | 12 (16.9) | 50 (26.7) |
| 45–54 | 25 (21.6) | 16 (22.5) | 41 (21.9) |
| 55–64 | 14 (12.1) | 8 (11.3) | 22 (11.8) |
| 65+ | 5 (4.3) | 2 (2.8) | 7 (3.7) |
| Rather not say | 1 (0.9) | 2 (2.8) | 3 (1.6) |
| Gender | |||
| Female | 80 (69.0) | 50 (70.4) | 130 (69.5) |
| Male | 33 (28.4) | 17 (23.9) | 50 (26.7) |
| Other | 2 (2.8) | 2 (1.1) | |
| Prefer not to say | 3 (2.6) | 2 (2.8) | 5 (2.7) |
| Work location | |||
| England | 9 (7.8) | 8 (11.3) | 17 (9.1) |
| North East England | 4 (3.4) | 3 (4.2) | 7 (3.7) |
| North West England | 7 (6.0) | 7 (9.9) | 14 (7.5) |
| Yorkshire and the Humber | 8 (6.9) | 5 (7.0) | 13 (7.0) |
| West Midlands | 10 (8.6) | 2 (2.8) | 12 (6.4) |
| East Midlands | 3 (2.6) | 4 (5.6) | 7 (3.7) |
| South West England | 9 (7.8) | 2 (2.8) | 11 (5.9) |
| South East England | 13 (11.2) | 6 (8.5) | 19 (10.2) |
| London | 19 (16.4) | 14 (19.7) | 33 (17.6) |
| East England | 3 (2.6) | 1 (1.4) | 4 (2.1) |
| Northern Ireland | 3 (2.6) | 3 (4.2) | 6 (3.2) |
| Scotland | 18 (15.5) | 12 (16.9) | 30 (16.0) |
| Wales | 10 (8.6) | 4 (5.6) | 14 (7.5) |
| Which aspects of the trial process are you directly involved in? | |||
| Trial design | 51 (44.0) | 37 (52.1) | 88 (47.1) |
| Undertaking the trial | 48 (41.4) | 37 (52.1) | 85 (45.5) |
| Dissemination | 55 (47.4) | 34 (47.9) | 89 (47.6) |
| Analysis | 36 (31.0) | 23 (32.4) | 59 (31.6) |
| Overseeing committee | 1 (0.9) | 4 (5.6) | 5 (2.7) |
| All stages | 56 (48.3) | 19 (26.8) | 75 (40.1) |
| Main role in trial | |||
| Trial manager | 81 (69.8) | 44 (62.0) | 125 (66.8) |
| Chief investigator | 2 (1.7) | 1 (1.4) | 3 (1.6) |
| Statistician | 16 (13.8) | 13 (18.3) | 29 (15.5) |
| Health economist | 2 (1.7) | 1 (1.4) | 3 (1.6) |
| Qualitative researcher | 6 (5.2) | 2 (2.8) | 8 (4.3) |
| Patient partner | 4 (3.4) | 4 (5.6) | 8 (4.3) |
| Coinvestigator | 9 (7.8) | 7 (9.9) | 16 (8.6) |
| Researcher | 6 (5.2) | 1 (1.4) | 7 (3.7) |
| Systematic reviewer | 1 (1.4) | 1 (0.5) | |
| PPI lead | 1 (0.9) | 2 (2.8) | 3 (1.6) |
| Not reported | 1 (0.9) | 1 (0.5) | |
| How long have you been working in trials? | |||
| Less than 5 years | 28 (24.1) | 29 (40.8) | 57 (30.5) |
| Between 5 and 10 years | 44 (37.9) | 17 (23.9) | 61 (32.6) |
| More than 10 years | 44 (37.9) | 25 (35.2) | 69 (36.9) |
| When do you involve PPP in numerical aspects of trials? | |||
| Never | 2 (1.7) | 2 (1.1) | |
| Rarely | 10 (8.6) | 10 (5.3) | |
| Regularly | 72 (62.1) | 72 (38.5) | |
| Every day | 32 (27.6) | 32 (17.1) | |
| What stage of a trial do you involve PPP in the numerical aspects? | |||
| Trial design | 86 (74.1) | 86 (46.0) | |
| Undertaking the trial | 58 (50.0) | 58 (31.0) | |
| Dissemination | 84 (72.4) | 84 (44.9) | |
| Undertaking the trial | 58 (50.0) | 58 (31.0) | |
| Overseeing committee | 8 (6.9) | 8 (4.3) | |
| No information available | 2 (0.9) | 4 (1.6) | |
Values are n (%).
PPI, patient and public involvement; PPP, patient and public partner.