Table 2.
Description of patient population.
| Study | Gender m/f | Mean age (range) | Number of patients screened | Number of patients with intervention | Patients evaluated | Drop-outs n (%) |
|---|---|---|---|---|---|---|
| Balshi et al., 1996 [13] | 15/29a | n/a (n/a) | 45 | 45 | 45 | 0 |
| Isidor and Budtz-Jørgensen, 1990 [29] | 25/28 | 69.0 (61–83) | 53 | 53 | 43 | 10 (23%) |
| Carlson and Yontchev, 1996 [14] | 11/1 | 53 (33–74) | 12 | 12 | 8 | 4 (33.3%) |
| Esquivel-Upshaw et al., 2008 [15] | 3/18 | n/a (30–62) | 21 | 21 | 21 | 0 |
| Frank et al., 1998 [22] | 402/398 | 59 (n/a) | 800 | 410 | 410 | —b |
| Hummel et al., 2002 [23] | n/a | n/a (17–n/a) | 17884 | 1306 | 1303 | —b |
| Lassila et al., 1985 [24] | 47/42 | 62.5 (n/a) | 89 | 89 | 89 | —b |
| Liedberg et al., 2005 [25] | 483/0 | 68 (67-68) | 483 | 483 | 474 | —b |
| Ow et al., 1997 [26] | 312/579 | 65.9 (55–91) | 891 | 891 | 871 | —b |
| Randow et al., 1986 [19] | 96/145c | 51.6 (n/a)c | 281 | 267 | 241 | 26 (11%) |
| Romeo et al., 2003 [16] | 16/22 | 51 (21–71) | 38 | 38 | 38 | 0 |
| Studer et al., 1998 [20] | 46/66 | 57.7 (28–84) | 155 | 155 | 112 | 43 (38%) |
| Tuominen et al., 1989 [27] | 2568/2460 | 51.9 (30–n/a) | 5028 | 5028 | 5028 | —b |
| Ueda et al., 1993 [17] | 11/11 | 54.4 (34–74) | 22 | 22 | 22 | 0 |
| Vallittu et al., 1993 [28] | n/a | n/a (n/a) | — | 266 | 266 | —b |
| Wayler et al., 1984 [18] | 1221/0 | 50.5 (25–79) | 1221 | 1133 | 1133 | 88 (8%) |
| Yli-Urpo et al., 1985 [21] | 62/60 | n/a (n/a) | — | 122 | 122 | 0 |
aNo information on the gender of 3 patients.
bThere were no drop-outs with one-time data collection, though cross-sectional studies contain no information on response rates.
cData applies to evaluated patients; all other apply to included patients.
f: female, m: male, n: number of patients, n/a: not available.