Categories | Number of studies | Number of participants | Response rate (%) | Odds ratio | |||||
---|---|---|---|---|---|---|---|---|---|
 | n | (%) | n | (%) | Med. | IQR* | OR | 95%CI** | p†|
Health professional | Â | Â | Â | Â | Â | Â | Â | Â | 0.18 |
Doctor | 236 | (67) | 219,859 | (60) | 59 | 44 to 72 | 1.00 | - | Â |
Nurse | 36 | (10) | 64,377 | (18) | 50 | 37 to 71 | 1.05 | 0.71 to 1.55 | Â |
Allied | 57 | (16) | 59,872 | (16) | 57 | 35 to 68 | 0.81 | 0.63 to 1.05 | Â |
Mixed | 21 | (6) | 21,382 | (6) | 62 | 45 to 74 | 0.77 | 0.57 to 1.05 | Â |
Country | Â | Â | Â | Â | Â | Â | Â | Â | < 0.0001 |
US | 130 | (37) | 179,589 | (49) | 51 | 38 to 65 | 1.00 | - | Â |
Canada | 34 | (10) | 36,976 | (10) | 53 | 38 to 67 | 1.13 | 0.82 to 1.55 | Â |
Australia/New Zealand | 20 | (6) | 14,736 | (4) | 53 | 38 to 68 | 1.13 | 0.76 to 1.68 | Â |
UK/Ireland | 82 | (23) | 51,790 | (14) | 62 | 52 to 76 | 1.69 | 1.34 to 2.14 | Â |
Other European countries | 48 | (14) | 59,235 | (16) | 63 | 59 to 73 | 1.72 | 1.30 to 2.28 | Â |
Other countries | 36 | (10) | 23,164 | (6) | 61 | 43 to 76 | 1.63 | 1.19 to 2.22 | Â |
Length (minutes) | Â | Â | Â | Â | Â | Â | Â | Â | 0.0005 |
<10 | 123 | (35) | 100,794 | (28) | 55 | 40 to 70 | 1.00 | - | Â |
10-19 | 77 | (22) | 103,547 | (28) | 51 | 38 to 66 | 0.92 | 0.72 to 1.18 | Â |
> = 20 | 42 | (12) | 62,465 | (17) | 52 | 40 to 67 | 0.94 | 0.70 to 1.27 | Â |
No information | 108 | (31) | 98,684 | (27) | 64 | 53 to 76 | 1.47 | 1.17 to 1.83 | Â |
Number of reminders | Â | Â | Â | Â | Â | Â | Â | Â | 0.08 |
0 | 176 | (50) | 176,886 | (48) | 53 | 38 to 70 | 1.00 | - | Â |
1 | 79 | (23) | 75,253 | (21) | 60 | 49 to 68 | 1.25 | 0.99 to 1.57 | Â |
2 | 47 | (13) | 41,995 | (11) | 61 | 51 to 74 | 1.28 | 0.97 to 1.70 | Â |
3-5 | 37 | (11) | 56,207 | (15) | 62 | 50 to 72 | 1.35 | 0.99 to 1.83 | Â |
No information | 11 | (3) | 15,149 | (4) | 52 | 38 to 72 | - | - | Â |
Number of survey participants | Â | Â | Â | Â | Â | Â | Â | Â | < 0.0001 |
> = 2,500 | 34 | (10) | 177,159 | (48) | 43 | 26 to 62 | 1.00 | - | Â |
1000-2499 | 62 | (18) | 87,362 | (24) | 46 | 38 to 59 | 1.16 | 0.83 to 1.61 | Â |
750-999 | 22 | (6) | 19,004 | (5) | 51 | 38 to 60 | 1.32 | 0.86 to 2.03 | Â |
500-749 | 61 | (17) | 36,674 | (10) | 53 | 40 to 63 | 1.46 | 1.04 to 2.04 | Â |
250-499 | 86 | (25) | 30,546 | (8) | 65 | 47 to 75 | 2.19 | 1.59 to 3.01 | Â |
<250 | 85 | (24) | 14,745 | (4) | 66 | 58 to 75 | 2.66 | 1.93 to 3.66 | Â |
Publication type | Â | Â | Â | Â | Â | Â | Â | Â | 0.51 |
Electronic | 75 | (21) | 75,409 | (21) | 60 | 44 to 71 | 1.00 | - | Â |
Standard | 275 | (79) | 290,081 | (79) | 58 | 44 to 71 | 0.93 | 0.74 to 1.16 | Â |
All studies | 350 | (100) | 365,490 | (100) | 59 | 42 to 71 | Â | Â | Â |