Table 1.

Seroprevalence status for varicella by characteristics of the pregnant woman and the newborn (umbilical cord). Aburrá Valley, Antioquia, Colombia.

Pregnant Women	Total n (%)	Seropositive n (%)	Seronegative n (%)	Equivocal n (%)
Age (years)
13 to 22	362 (45.3)	298 (43.7)	60 (57.7)	4 (30.8)
23 to 32	341 (42.7)	299 (43.8)	36 (34.6)	6 (46.2)
33 to 43	96 (12.0)	85 (12.5)	8 (7.7)	3 (23.1)
Area
Urban	760 (95.1)	651 (95.5)	98 (94.2)	11 (84.6)
Rural	39 (4.9)	31 (4.5)	6 (5.8)	2 (15.4)
Educational level
Less than 11 years	612 (76.6)	527 (77.3)	77 (74.0)	8 (61.5)
11 years or more	185 (23.1)	154 (22.6)	26 (25.0)	5 (38.5)
No data	2 (0.3)	1 (0.1)	1 (1.0)	0 (0.00)
Socioeconomic status
Low	715 (89.5)	613 (89.9)	90 (86.5)	12 (92.3)
High	35 (4.4)	29 (4.2)	6 (5.8)	0 (0.0)
No data	49 (6.1)	40 (5.9)	8 (7.7)	1 (7.7)
Social security in health
Contributory	391 (48.94)	325 (47.65)	58 (55.8)	8 (61.5)
Subsidized	408 (51.06)	357 (52.35)	46 (44.2)	5 (38.5)
Overcrowding
Yes	26 (3.2)	22 (3.2)	4 (3.8)	0 (0.0)
No	773 (96.8)	660 (96.8)	100 (96.2)	13 (100.0)
Number of pregnancies
1	382 (47.8)	319 (46.8)	55 (52.9)	8 (61.5)
2	220 (27.5)	194 (28.4)	24 (23.1)	2 (15.2)
3 or more	197 (24.7)	169 (24.8)	25 (24.0)	3 (24.0)
Gestational week at delivery
37	149 (18.7)	124 (18.2)	21 (20.3)	4 (30.8)
38	183 (22.9)	154 (22.6)	27 (26.0)	2 (15.4)
39	227 (28.4)	193 (28.3)	30 (28.8)	4 (30.8)
40	203 (25.4)	181 (26.5)	20 (19.2)	2 (15.4)
41	37 (4.6)	30 (4.4)	6 (5.7)	1 (7.6)
Maternal morbidity
Yes	72 (9.0)	65 (9.5)	6 (5.8)	1 (7.7)
No	727 (91.0)	617 (90.5)	98 (94.2)	12 (92.3)
Total	799 (100.0)	682(85.4)	104 (12.3)	13 (1.6)
Newborns	Total n (%)	Seropositive n (%)	Seronegative n (%)	Equivocal n (%)
Sex
Male	392 (52.2)	341 (51.9)	47 (52.8)	4 (80.0)
Female	359 (47.8)	316 (48.1)	42 (47.2)	1 (20.0)
Birth weight (grams)
3000 or more	483(64.3)	425(64.7)	55(61.8)	3(60.0)
Less than 3000	268(35.7)	232(35.3)	34(38.2)	2(40.0)
Total	751 (100.00)	657 (87.5)	89 (11.8)	5 (0.7)