Grommets (ventilation tubes) for recurrent acute otitis media in children

The Cochrane Library

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Analysis 1.1

Comparison 1 > 1 episode of acute otitis media, Outcome 1 Acute otitis media.

Table 1. Tabulated results: Gebhart 1981

Gebhart 1981	Grommet	No grommet	Total
No AOM	25*	2*	27
AOM once or more	29	39	68
Total	54	41	95
* Chi² test shows this difference is significant at P < 0.001
AOM: acute otitis media

Table 1. Tabulated results: Gebhart 1981

Table 2. Tabulated results: El Sayed 1996

El Sayed 1996	Grommet	No grommet	Total
No AOM	20	10	30
AOM once or more	11	12	23
Total	31	22	53
A Chi² test shows that the above results are not statistically significant (P > 0.05)

Table 2. Tabulated results: El Sayed 1996

Comparison 1. > 1 episode of acute otitis media

Outcome or subgroup title	No. of studies	No. of participants	Statistical method	Effect size
1 Acute otitis media Show forest plot	2	148	Odds Ratio (M‐H, Fixed, 95% CI)	0.18 [0.08, 0.42]

Comparison 1. > 1 episode of acute otitis media