TABLE 62-2.

Efficacy of PCV7 in Finnish Children with Acute Otitis Media (AOM)

END POINT	AOM EPISODES		VACCINE EFFICACY POINT ESTIMATE (%)
	PCV7 (N = 831)	Control* (N = 831)
Any AOM	1251	1345	6
Pneumococcal AOM	271	414	34
Vaccine serotypes	107	250	57
Cross-reactive serotypes	41	84	51
Nonvaccine serotypes	125	95	−33
Haemophilus influenzae AOM	315	287	−11
Moraxella catarrhalis AOM	379	381	−1

^*Hepatitis B vaccine.

Data from Eskola J, Kilpi T, Palmu A, et al. Efficacy of a pneumococcal conjugate vaccine against acute otitis media. N Engl J Med. 2001;344:403-409.