Table 4.

Pneumococcal serotype distributions of isolates from patients with pneumonia and AECOPD

Serotype	No. (%) of isolates		P value
	Pneumonia	AECOPD
4	6 (1.5)	2 (0.5)
6B	13 (3.2)	5 (1.3)
9V	9 (2.2)	10 (2.5)
14	28 (7.0)	23 (5.8)
18C	3 (0.7)	4 (1)
19F	10 (2.5)	11 (2.8)
23F	9 (2.2)	9 (2.3)
Total for PCV7 serotypes	78 (19.5)	64 (16.1)
1	14 (3.5)	2 (0.3)	0.004
5	5 (1.2)	0 (0)
7F	25 (6.2)	12 (3)	0.030
3	86 (21.4)	30 (7.5)	<0.001
6Aa	13 (3.2)	20 (5)
19A	33 (8.2)	32 (8)
Total for PCV13 serotypes	254 (63.3)	160 (40.2)	<0.001
2	0 (0)	0 (0)
8	13 (3.2)	3 (0.8)
9N	6 (1.5)	2 (0.5)
10A	6 (1.5)	11 (2.8)
11A	2 (0.5)	1 (0.3)
12F	0 (0)	1 (0.3)
15B	13 (3.2)	23 (5.8)
17F	4 (1.0)	3 (0.8)
20	1 (0.2)	2 (0.5)
22F	15 (3.7)	23 (5.8)
33F	0 (0)	6 (1.5)	0.015
Total for PPV23 serotypes	301 (75.1)	215 (54)	<0.001
11b	13 (3.2)	16 (4.0)
15A	0 (0)	9 (2.3)	0.002
16F	5 (1.2)	13 (3.3)
21	1 (0.2)	7 (1.8)	0.038
23A	6 (1.5)	15 (3.8)	0.049
23B	3 (0.7)	10 (2.5)
27	5 (1.2)	0 (0)
31	15 (3.7)	15 (3.8)
34	1 (0.2)	6 (1.5)
35 B	9 (2.2)	15 (3.8)
35F	6 (1.5)	8 (2)
Nontypeable isolates	0 (0)	26 (6.5)	<0.001
Otherc	23 (5.7)	23 (5.8)
Total	401	398

^aNot included in the PPV23.

^bSerotypes 11B, 11C, 11D, or 11F.

^cSerotypes with fewer than five isolates.