Survey respondent characteristics (only authors who provided demographic information)
| Characteristic* | No. (%) of responses |
|---|---|
| Region of residence† (n = 655) | |
| Canada | 46 (7.0) |
| United States | 247 (37.7) |
| United Kingdom | 110 (16.8) |
| Non-UK Europe | 166 (25.3) |
| Australia or New Zealand | 81 (12.4) |
| South Africa | 6 (0.9) |
| Other | 10 (1.5) |
| Gender (n = 655) | |
| Man | 271 (41.4) |
| Woman | 364 (55.6) |
| Other or prefer not to disclose | 20 (3.1) |
| Age, yr (n = 654) | |
| 25–35 | 13 (2.0) |
| 36–45 | 119 (18.2) |
| 46–55 | 203 (31.0) |
| 56–65 | 185 (28.3) |
| > 65 | 125 (19.1) |
| Prefer not to answer | 9 (1.4) |
| Stage of research career (n = 654) | |
| Early-career researcher (within 5 yr of first academic position) | 46 (7.0) |
| Mid-career researcher (6–15 yr since first academic position) | 167 (25.5) |
| Late career researcher (> 15 yr since first academic position) | 402 (61.5) |
| Retired researcher or professor emeritus | 18 (2.8) |
| Nonacademic researcher or other | 21 (3.2) |
| Racial or ethnic group† (n = 653) | |
| White | 550 (84.2) |
| Indigenous | 2 (0.3) |
| South, Southeast, or West Asian; Korean, Japanese, Arab, Chinese | 48 (7.4) |
| Black | 10 (1.5) |
| Latin American or Hispanic | 11 (1.7) |
| Prefer not to answer | 30 (4.6) |
| Other | 11 (1.7) |
| Years of PPI experience (n = 654) | |
| < 1 | 47 (7.2) |
| 1–3 | 64 (9.8) |
| 4–10 | 190 (29.1) |
| > 10 | 353 (54.0) |