Comparative (decision aid vs usual care) continuous outcomes
| Study | Scale | Mean (SD) intervention* | Mean (SD) control* | Mean difference (95% CI) | P values |
| Clinicians’ satisfaction with decision aid and decision making process | |||||
| Montori e t al 27 2017, Osteoporosis | Scale 1–7 | 4.5 (range 3–5) | 4 (range 2–5) | 0.52 (0.27 to 0.78) | <0.01 |
| Légaré et al
30 2012, Antibiotics for respiratory infections (2) | Scale 0–10 | 8.2 (1.3) | 8.4 (1.0) | −0.2 (−0.6 to 0.2) | |
| Légaré et al
31 2011, Antibiotics for respiratory infections (1) | Scale 1–10 | 8.7 (1.2) | 8.5 (1.3) | 0.2 (−0.34 to 0.89) | 0.29 |
| Leighl et al 34 2011, Palliative chemotherapy in colorectal cancer | Scale 6–30 | Median 24 (range 18–30) | Median 24 (range 21–30) | 0 | |
| Ozanne et al 35 2007, Breast cancer prevention | Scale 1–5 | 1.82 (0.52) | 1.78 (0.45) | 0.04 | 0.82 |
| Whelan et al
36 2003, Adjuvant chemotherapy in breast cancer | Scale 1–5 | 4.37 (95% CI 4.16 to 4.58) | 4.35 (95% CI 4.19 to 4.51) | 0.02 | 0.89 |
| Decisional conflict | |||||
| Warner et al 20 2015, Smoking cessation | Decisional comfort scale (0: conflict, 100: comfort) | 81 (±12) | 74 (±16) | 7 | 0.034 |
| LeBlanc et al 26 2015, Osteoporosis | Decisional Conflict Scale (DCS), scores: 0–100 (0: no conflict, 100: highest conflict) | Median 25 (IQR 6−25) | Median 25 (IQR 14−25) | 0 | 0.18 |
| LeBlanc et al 28 2015, Depression | Decisional Conflict Scale (DCS), scores: 0–100 (0: conflict, 100: comfort) | 79.7 (95% CI 77.6 to 81.8) | 68.3 (95% CI 65.4 to 71.2) | 11.4 (5.7 to 17.1) | <0.001 |
| Helpfulness of the shared information | |||||
| Montori et al 27 2011, Osteoporosis | Scale 1–7 | 5.8 (range 3−7) | 5.2 (range 2−7) | 0.64 (0.18 to 1.09) | 0.006 |
| Intention to use decision aid/SDM making in the future/for other decisions | |||||
| Montori et al 27 2011, Osteoporosis | Scale 1–7 | 6.1 (range 4−7) | 4.9 (range 1−7) | 1.2 (0.73 to 1.67) | <0.001 |
| Légaré et al 30 2012, Antibiotics for respiratory infections (2) | 3-item scale (scores: −3 to 3) | 1.7 (0.9) | 1.8 (0.7) | 0.0 (−0.3 to 0.2) | |
| Légaré et al 31 2011, Antibiotics for respiratory infections(1) | 3-item scale (scores: −3 to 3) | 1.3 (1.2) | 0.8 (1.3) | 0.5 (−0.2 to 1.3) | 0.77 |
| Would recommend decision aid/SDM to other clinicians | |||||
| Montori et al 27 2011, Osteoporosis | Scale 1–7 | 5.9 (range 3−7) | 4.8 (range 1−7) | 1.09 (0.57 to 1.61) | <0.001 |
| Intention to follow clinical practice guidelines | |||||
| Légaré et al 30 2012, Antibiotics for respiratory infections (2) | 3-item scale (scores: −3 to 3) | 2.0 (0.7) | 2.2 (0.7) | −0.2 (−0.5 to 0.1) | |
| Légaré et al 31 2011, Antibiotics for respiratory infections (1) | 3-item scale (scores: −3 to 3) | 2.1 (0.9) | 2.2 (0.5) | −0.1 (−0.7 to 0.5) | |
| Length of the consultation in outpatient setting | |||||
| Coylewright et al 13 Stable 2016, coronary artery disease | minutes | ‘The mean duration of the clinical visits was 24 min, ranging from 5 to 60 min.’ | ‘Both decision aid and UC visits took a similar amount of time…’ | ||
| Perestelo-Pérez e t al 17 2016, Statin | minutes | 18.10 (8.07) | 19.65 (12.61) | −4.36 (−12.9 to 4.18) Beta/OR from multilevel linear/logistic regression | |
| Nannenga et al 18 2009, Statin | minutes | Only mean difference available | 3.8 (−2.9 to 10.5) | ||
| Thomson et al 19 2007, Anticoagulation atrial fibrillation | minutes | Median 31 (IQR 16−41) | Median 21 (IQR 19−26) | 10 | 0.001 |
| Mathers et al 212012, Insulin | minutes | 15.31 (2−39) | 16.95 (5 to 45) | −1.67 (−0.93 to -4.27) | |
| LeBlanc et al 26 2015, Osteoporosis | minutes | Median 11.5 (range 5.4 to 21.4) | Median 10.7 (range 2.5 to 54.9) | 0.8 (−33.6 to 3.0) | |
| Montori et al 27 2015, Osteoporosis | minutes | median 12.4 (range 2.3 to 27.4) | median 9.4 (range 2.1 to 58) | 3.0 | 0.045 |
| LeBlanc et al 28 2015, Depression | minutes | 44 (22) | 48 (27) | -4 | 0.47 |
| Loh et al 29 2007, Depression | minutes | 31.4 (15.1) | 29.2 (10.7) | 2.2 | 0.476 |
| Walczak et al 332017, Cancer advance care planning | minutes | 20.6 | 20.4 | 0.2 | 0.307 |
| Ozanne et al 35 2007, Breast cancer prevention | minutes | 24.3 (7.5) | 21.9 (8.51) | 2.4 | 0.42 |
| Whelan et al 36 2003, Adjuvant chemotherapy in breast cancer | minutes | 47.5 | 39.9 | 0.26 | |
| Bekker et al 37 2004, Prenatal diagnosis | minutes | 32.2 (95% CI 28.6 to 35.8) | 26.3 (95% CI 23.2 to 29.2) | 5.9 | 0.01 |
| Length of conversation in emergency department | |||||
| Hess et al 15 2016, Chest pain | minutes | 4.4 (0.40) | 3.1 (0.29) | 1.3 | 0.008 |
*Unless specified otherwise.
SDM, shared decision making.