The impact and effectiveness of pneumococcal vaccination in Scotland for those aged 65 and over during winter 2003/2004

Table 1 IPD Standardised Incidence Ratios (SIR) for winter 2003/2004 by age-band and sex

Age group (years)	Observed cases	Expected cases	SIR	95% CI	Chi- square test P- value	Equivalent annual incidence rates/ 100,000
65+
Males	69	106	65.2	50.7 – 82.6	<0.001**	30.85
Females	101	150	67.1	54.7 – 81.6	<0.001**	31.33
65+ All	170	256	66.4	56.8 – 77.2	<0.001**	31.13
Males
0–4	36	30	118.4	82.9 – 164.1	0.310	40.04
5–34	37	25	150.2	105.7 – 207.2	0.013*	5.79
35–49	37	39	95.0	66.8 – 131.1	0.757	9.98
50–64	42	44	95.8	69.0 – 129.56	0.780	14.03
65–74	31	41	74.8	50.8 – 106.3	0.105	22.74
75+	38	65	58.8	41.6 – 80.8	<0.001**	43.49
Females
0–4	27	18	152.2	100.2 – 221.8	0.028	31.41
5–34	32	16	204.8	140.0 – 289.4	<0.001*	5.05
35–49	26	20	129.4	84.4 – 189.8	0.188	6.62
50–64	35	42	83.9	58.4 – 116.8	0.298	11.16
65–74	26	43	60.3	39.3 – 88.4	0.009**	15.74
75+	75	107	70.0	55.1 – 87.8	0.002**	47.72

ISSN: 1471-2334