Assessing the potential for outcome reporting bias in a review: a tutorial

Table 1 Outcome matrix

Trial ID	Review primary outcomes		Trial outcomes
	Pulmonary function	Hospital admission	Blood pressure	Severity score	Respiratory score	Calcium/potassium/magnesium	Respiratory frequency or rate	Hospital stay/length of hospital stay	Heart rate	Side effects	Other outcomes
Dadhich, 2003 [17]	✘	✘	✘	✘	✘	✘	✘	✘	✘	○	Bronchodilating effects
Santana, 2001 [18] (children)	✘	✘	○	✘	✘	✔	✔	✔	✔	✔	arterial blood gasses, oxygen therapy, ph, nebulisations, acidosis
Bijani, 2002 [22] (adults)	✔	✘	✘	✘	✘	✘	✘	✘	✘	✘	Number of breathing, diaphoresis, cyanosis, Using respiratory access muscles, clinical asthma score
Bessmertny, 2002 [21] (adults)	✔	✘	○	✘	✘	○	○	✘	○	✔	oxygen saturation
Gurkan, 1999 [24] (children)	✔	✘	○	✘	✘	✘	✘	✘	○	○	Nebulisations, clinical asthma score
Devi, 1997 [23] (children)	✔	✘	✘	✘	✘	✘	✘	✘	✔	✔	Clinical asthma score, oxygen saturation, pulsus paradoxus
Tiffany, 1993 [26] (adults)	✔	✘	✘	✘	✘	✔	✘	✘	✘	✘	✘
Meral, 1996 [25] (children)	✔	✘	○	✘	✔	✘	○	✘	○	✔	✘
Boonyavorakul, 2000 [19] (adults)	✘	✔	✘	✔	✘	✘	✘	✘	✘	✘	✘
Scarfone, 2000 [20] (children)	✘	✔	✘	✘	✘	✘	✘	✘	✘	✘	Pulmonary index score, oxygen saturation

^✔ indicates full reporting of results for treatment comparison of interest
^✘ indicates no reporting
○ indicates partial reporting (i.e. only the p-value is given for the comparison)

ISSN: 1745-6215