Table 3. Proportion of diphtheria cases by severity of disease and vaccination status in Latvia, 1994–2014.

Severity of disease		Number of severe cases	%	Number of moderate cases	%	Number of mild cases	%
Age group (years)	0–4	22	28.9%	25	32.9%	29	38.2%
	5–9	14	12.1%	33	28.4%	69	59.5%
	10–14	3	3.2%	30	32.3%	60	64.5%
	15–17	4	7.1%	20	35.7%	32	57.1%
	18–19	5	3.6%	104	74.3%	31	22.1%
	20–29	5	2.7%	99	52.7%	84	44.7%
	30–39	26	13.2%	91	46.2%	80	40.6%
	40–49	95	33.9%	138	49.3%	47	16.8%
	50–59	81	37.3%	105	48.4%	31	14.3%
	≥ 60	63	41.4%	74	48.7%	15	9.9%
Children 0–17 years		43	12.6%	108	31.7%	190	55.7%
Adults ≥ 18 years		275	23.4%	611	52.0%	288	24.5%
Vaccination status	Vaccinated	20	4.8%	203	48.6%	195	46.6%
	Partially vaccinated or unvaccinated	298	27.2%	516	47.0%	283	25.8%
Total		318	21.0%	719	47.5%	478	31.5%