TABLE 1.

Gestational weeks in vaccinated and unvaccinated study groups, stratified by patient age

Patient age (yr)	Vaccinated group					Unvaccinated groupa
	No. of patients	% of patients at a gestational age (wk) of:				No. of patients	% of patients at a gestational age (wk) of:
		5–9	10–19	20–29	≥30		5–9	10–19	20–29	≥30
18–20	4	0.0	25.0	50.0	25.0	3	0.0	33.3	0.0	66.7
21–25	81	16.0	30.9	9.9	43.2	63	23.8	31.7	11.2	33.3
26–30	28	10.7	32.1	10.7	46.4	33	30.3	24.2	9.1	36.4
≥30	9	33.3	11.1	0.0	55.6	5	0.0	20.0	20.0	60.0
Total	122	15.6	29.5	10.7	44.3	104	24.0	28.8	10.6	36.6

^aχ² = 2.898, P = 0.408.