Table 1.
Non-randomised studies | Inclusion criteria |
Requirements to contain high risk of bias |
Comments | ||||||
---|---|---|---|---|---|---|---|---|---|
P | I | C | O | Response ≥70% | Baseline each group | Baseline comparable/or adjusted | Statistical comparison between groups | ||
Bacon et al29 | Yes | Yes | No | – | – | – | – | – | No concurrent group |
Ball et al30 | Yes | Yes | No | – | – | – | – | – | Cryotherapy |
Befort et al31 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Bergman et al32 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | No appropriate test |
Bergman et al33 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Brandeis et al34 | Yes | No | – | – | – | – | – | – | 29% LDR-BT+EBRT |
Brown et al35 | Yes | No | – | – | – | – | – | – | EBRT |
Burnett et al36 | Yes | Yes | Yes | Yes | No | – | – | – | Response not reported |
Chaikin et al37 | No | – | – | – | – | – | – | – | Staging not reported |
Chen et al38 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Choo et al39 | Yes | Yes | Yes | Yes | Yes | No | – | – | Baseline not reported |
Clark et al40 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Downs et al41 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Eton et al42 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Frank et al43 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Fulmer et al44 | Yes | Yes | Yes | Yes | No | – | – | – | Response not reported |
Gore et al45 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Guedea et al46 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Hashine et al47 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Hashine et al48 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Hervouet et al49 | No | – | – | – | – | – | – | – | ≥20% T3–T4 in control groups |
Hollenbeck et al50 | Yes | No | – | – | – | – | – | – | LDR-BT+EBRT |
Jo et al51 | Yes | No | – | – | – | – | – | – | High-dose rate brachytherapy |
Johnstone et al52 | Yes | No | – | – | – | – | – | – | EBRT |
Joly et al53 | Yes | No | – | – | – | – | – | – | LDR-BT+EBRT |
Kakehi et al54 | Yes | Yes | Yes | Yes | Yes | No | – | – | Baseline not reported |
Lev et al55 | Yes | No | – | – | – | – | – | – | LDR-BT+EBRT |
Lilleby et al56 | Yes | No | – | – | – | – | – | – | EBRT |
Litwin et al57 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Litwin et al58 | Yes | No | – | – | – | – | – | – | 25% LDR-BT+EBRT |
Mehta et al59 | Yes | Yes | Yes | No | – | – | – | – | “Fear of cancer”* |
Miller et al60 | Yes | No | – | – | – | – | – | – | 44% LDR-BT+EBRT |
Miller et al61 | Yes | Yes | Yes | Yes | Yes | No | – | – | Baseline not reported |
Monahan et al62 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Namiki et al63 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Namiki et al64 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Ohashi et al65 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Pinkawa et al66 | Yes | Yes | No | – | – | – | – | – | LDR-BT+hormones† |
Roach et al67 | Yes | No | – | – | – | – | – | – | EBRT, single-arm trial |
Sanda et al68 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Schover et al69 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Soderdahl et al70 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Speight et al71 | Yes | Yes | Yes | Yes | No | – | – | – | Response not reported |
Stone et al72 | Yes | Yes | No | – | – | – | – | – | LDR-BT+hormones† |
Trojan et al73 | Yes | Yes | Yes | Yes | No | – | – | – | Low response |
Tward et al74 | Yes | Yes | Yes | No | – | – | – | – | Mortality differs§ |
Valicenti et al75 | Yes | Yes | Yes | Yes | No | – | – | – | Response not reported |
Van de Poll- Franse et al76 | Yes | No | – | – | – | – | – | – | LDR-BT+EBRT |
Wyler et al77 | Yes | Yes | Yes | Yes | Yes | Yes | No | – | No confounder control |
Zagar et al78 | Yes | No | – | – | – | – | – | – | LDR-BT+EBRT |
‘NO’ counts | 2 | 13 | 4 | 2 | 19 | 3 | 6 | 1 | Total: 50 studies |
PICO not met: 21 | High risk of bias: 29 |
–: not appropriate.
*Mehta et al59: no appropriate endpoint.
§Tward et al74: non-disease-related mortality differs greatly.C, comparison of interest is radical prostatectomy, external beam radiotherapy, or no primary therapy; EBRT, external beam radiotherapy; I, intervention of interest is low-dose rate brachytherapy as monotherapy; LDR-BT, permanent interstitial low-dose rate brachytherapy; O, outcome of interest is function, bother, or generic health-related quality of life; P, patients with localised prostate cancer; PRO, patient-reported outcomes.