Occupational characteristics by intervention group
| Intervention group | p value | ||||||
|---|---|---|---|---|---|---|---|
| A (n = 122) | B (n = 125) | C (n = 115) | |||||
| n | % | n | % | n | % | ||
| FE, Fisher’s exact test; JCQ, Job Content Questionnaire. | |||||||
| *Participants who remained in the study for the full duration of their eligibility were classified as “full follow up” (see Methods section for full description). | |||||||
| Typing speed | |||||||
| <50 wpm | 45 | (38.5) | 36 | (30.5) | 42 | (41.2) | 0.34 |
| 50–60 wpm | 55 | (47.0) | 67 | (56.8) | 44 | (43.1) | |
| > 65 wpm | 17 | (14.5) | 15 | (12.7) | 16 | (15.7) | |
| Missing | 5 | 5 | 13 | ||||
| Job title | |||||||
| Officials and managers | 6 | (5.1) | 9 | (7.6) | 9 | (8.8) | 0.84 (FE) |
| Professionals | 66 | (56.4) | 54 | (45.8) | 54 | (52.9) | |
| Technicians | 2 | (1.7) | 3 | (2.5) | 2 | (2.0) | |
| Sales | 1 | (0.9) | 1 | (0.9) | 1 | (1.0) | |
| Office and clerical | 42 | (35.9) | 51 | (43.2) | 36 | (35.3) | |
| Missing | 5 | 7 | 13 | ||||
| Use a mouse | |||||||
| Sometimes | 5 | (4.3) | 5 | (4.2) | 3 | (2.9) | 0.94 (FE) |
| Frequently | 47 | (40.2) | 50 | (42.4) | 39 | (38.2) | |
| Almost all the time | 65 | (55.6) | 63 | (53.4) | 60 | (58.8) | |
| Missing | 5 | 7 | 13 | ||||
| Step away from workstation | |||||||
| When you choose | 114 | (97.4) | 117 | (99.2) | 99 | (97.1) | 0.52 (FE) |
| Scheduled times | 3 | (2.6) | 1 | (0.9) | 3 | (2.9) | |
| Missing | 5 | 7 | 13 | ||||
| JCQ job strain quadrant | |||||||
| High strain quadrant | 21 | (18.0) | 23 | (19.5) | 25 | (24.5) | 0.46 |
| Non-high strain quadrant | 96 | (82.1) | 95 | (80.5) | 77 | (75.5) | |
| Missing | 5 | 7 | 13 | ||||
| Chair comfort | |||||||
| Very comfortable | 56 | (47.9) | 52 | (44.1) | 24 | (23.5) | 0.00 (FE) |
| Somewhat comfortable | 54 | (46.2) | 59 | (50.0) | 60 | (58.8) | |
| Somewhat uncomfortable | 6 | (5.1) | 5 | (4.2) | 16 | (15.7) | |
| Very uncomfortable | 1 | (0.9) | 2 | (1.7) | 2 | (2.0) | |
| Missing | 5 | 7 | 13 | ||||
| Hand-arm follow up status | |||||||
| Incomplete follow up | 47 | (39.5) | 51 | (41.1) | 49 | (35.7) | 0.89 |
| Full follow up* | 72 | (60.5) | 73 | (58.9) | 66 | (64.3) | |
| Neck-shoulder follow up status | |||||||
| Incomplete follow up | 38 | (33.3) | 37 | (31.9) | 39 | (35.8) | 0.82 |
| Full follow up* | 76 | (66.7) | 79 | (68.1) | 70 | (64.2) | |