Table 2.

Assessment of quality criteria for trial of efficacy of non-steroidal anti-inflammatory drugs and opioids for pain relief in acute renal colic

Study	Allocation concealment	Intention to treat analysis	Completeness of follow up	Investigators blinded	Participants blinded	Outcome assessors blinded
al-Sahlawi and Tawfik 199612	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Yes
Arnau et al 199117	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Yes
Cordell et al 199418	Adequate	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Insufficient information	Yes	Yes	Yes
Cordell et al 199611	Adequate	Yes; all patients with clinical diagnosis	Insufficient information	Yes	Yes	Yes
Curry and Kelly 19954	Adequate	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Reported	Yes	Yes	Yes
Hetherington and Philip 198619	Insufficient information	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Insufficient information	Insufficient information	Yes	Yes
Indudhara et al 199020	Insufficient information	Insufficient information	Insufficient information	Insufficient information	NO	Insufficient information
Jonsson et al 198721	Adequate	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Insufficient information	Yes	Yes	Yes
Larkin et al 199922	Adequate	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Reported	Yes	Yes	Yes
Lehtonen et al 198323	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Yes
Lundstam et al 198224	Insufficient information	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Marthak et al 199125	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Oosterlinck et al 199026	Insufficient information	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Reported	Insufficient information	Insufficient information	Yes
Persson et al 198526	Insufficient information	Yes; all patients with clinical diagnosis	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Quilez et al 198428	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Sandhu et al 199429	Insufficient information	Yes; all patients with clinical diagnosis	Insufficient information	Insufficient information	Yes	Insufficient information
Sommer et al 198930	Insufficient information	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Reported	Insufficient information	Yes	Insufficient information
Thompson et al 198931	Insufficient information	Only patients with diagnosis confirmed on subsequent investigations included in analysis	Insufficient information	Insufficient information	No	Insufficient information
Nicolas Torralba et al 199932	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information	Insufficient information
Uden et al 198333	Insufficient information	Insufficient information	Insufficient information	Insufficient information	No	Yes