Table 3. Distribution of prevalence of rubella antibodies according to recorded history of vaccination in the variables studied.

Variable	Recorded history of vaccination		No recorded history of vaccination
	Number	Prevalence	Number	Prevalence	OR	P
		(95% CI)		(95% CI)	(95% CI)
Age
<30 y	53	94.3 (84.3–98.8)	75	94.7 (86.9–98.5)	0.94 (0.20–4.38)	1
30 – 44 y	38	100 (90.7–100)	216	98.1 (95.3–99.5)	NC	1
45 – 54 y	4	100 (39.8–100)	165	96.4 (92.3–98.7)	NC	1
≥55 y	0		91	98.9 (94.0–100)	NC	1
All	95	96.8 (91.0–99.3)	547	97.3 (95.5–98.5)	0.86 (0.25–3.05)	0.739
Sex
Male	20	90.0 (68.3–98.8)	131	98.5 (94.6–99.8)	0.14 (0.02–1.05)	0.085
Female	75	98.7 (92.8–100)	416	96.9 (94.7–98.3)	2.39 (0.31–18.52)	0.706
Professional group
Physician	37	94.6 (81.8–99.3)	154	98.7 (95.4–99.8)	0.23 (0.03–1.69)	0.170
Nurse	38	100 (90.7–100)	210	98.6 (95.9–99.7)	NC	1
Other clinical workers	12	91.7 (61.5–99.8)	73	94.5 (86.6–98.5)	0.64 (0.07–6.25)	0.542
Non-clinical workers	8	100 (63.1–100)	107	94.4 (88.2–97.9)	NC	1
Type of center
Primary health	31	100 (88.8–100)	268	97.4 (94.7–98.9)	NC	1
Hospital	64	95.3 (86.9–99)	279	97.1 (94.4–98.8)	0.60 (0.15–2.33)	0.437

NC, Not calculable.