Table 3. Estimated SARS-CoV-2 seroprevalence by age and sex in the population aged 12–69 years, Dublin and Sligo, Ireland, 22 June–16 July 2020 (n = 33).

Category		Ireland			Dublin			Sligo
		Number seropositive (n)	Weighted prevalence (%)	95% CI	Number seropositive (n)	Weighted prevalence (%)	95% CI	Number seropositive (n)	Weighted prevalence (%)	95% CI
Sex	Females	20	1.84	1.08–2.90	18	3.61	2.12–5.71	2	0.44	0.05–1.59
	Males	13	1.53	0.79–2.67	10	2.61	1.23–4.82	3	0.72	0.12–2.27
Age group (years)	12–19	3	1.44	0.28–4.25	2	2.23	0.26–7.92	1a	0.26	0.004–1.56
	20–29	7	2.32	0.81–5.12	7	4.65	1.86–9.42
	30–39	5	1.42	0.42–3.46	5	2.98	0.97–6.84
	40–49	7	1.75	0.66–3.71	6	3.09	1.12–6.67	4b	0.88	0.24–2.25
	50–59	5	1.53	0.49–3.58	3	1.93	0.39–5.58
	60–69	6	1.69	0.57–3.83	5	3.22	1.05–7.34
Population total	12–69	33	1.69	1.13–2.41	28	3.12	2.05–4.53	5	0.58	0.18–1.38

CI: confidence interval; SARS-CoV-2: severe acute respiratory syndrome coronavirus 2.

^a One age group of 12–39 years was analysed because of low numbers of positive samples.

^b One age group of 40–69 years was analysed because of low numbers of positive samples.