Table 3.
Evaluation of the video
| All subjects (n = 168) | COHORT 1 Medical students (n = 108) |
COHORT 2 Residents and attendings (n = 60) |
Mann Withney U |
Two samples Z-test |
P-value* | |
|---|---|---|---|---|---|---|
| Satisfaction level (rated 0 to 5) |
M = 4.7 (SD ± 0.6) Med = 5.0 (IQR = 5–5) Mode = 5 |
M = 4.8 (SD ± 0.5) Med = 5.0 (IQR = 5–5) Mode = 5 |
M = 4.5 (SD ± 0.7) Med = 5.0 (IQR = 4–5) Mode = 5 |
2598 | −2.336 | 0.0037 |
| Rated interest of VR in addition to simulation (rated 0 to 5) |
M = 4.1 (SD ± 1.0) Med = 4.0 (IQR = 4–5) Mode = 5 |
M = 4.2 (SD ± 0.9) Med = 4.5 (IQR = 4–5) Mode = 4 |
M = 3.9 (SD = 0.9) Med = 4.0 (IQR = 3–5) Mode = 5 |
2641 | −1.971 | 0.0338 |
| Rated interest of VR to 2D video (rated 0 to 5) |
M = 3.9 (SD ± 1.1) Med = 4.0 (IQR = 3–4) Mode = 4 |
M = 4.0 (SD ± 1.0) Med = 4.0 (IQR = 4–5) Mode = 4 |
M = 3.7 (SD ± 1.2) Med = 4.0 (IQR = 3–5) Mode = 4 |
2727 | −1.952 | 0.0733 |
| Rated interest of extension of VR for other procedures (rated 0 to 5) |
M = 4.4 (SD = 0.9) Med = 5.0 (IQR = 4–5) Mode = 5 |
M = 4.5 (SD ± 0.9) Med = 5.0 (IQR = 4–5) Mode = 5 |
M = 4.4 (SD ± 0.9) Med = 5.0 (IQR = 4–5) Mode = 5 |
3066 | −0.437 | 0.4956 |
| Interested in having the video in open-access, n (%) | 122 (73%) | 91 (84%) | 33 (55%) | ─ | ─ | < 0.0001# |
Data is presented as mean M (±SD), median Med (IQR) and mode, or n, number of subjects (%). All parameters were assessed on a 5-point scale (0, no interest, utility or satisfaction to 5, high interest, utility or satisfaction)
* LP-naïve medical students versus attending and residents group with prior LP experience, using Mann-Whitney test and Z-test
#Proportions of participants interested in having the video in open-access were compared using chi-squared
Abbreviations: IQR Interquartile range, LP Lumbar puncture, M Mean, Med Median, n Number of subjects, SD Standard deviation, VR Virtual reality