Table 2.

Adverse events ^a in pregnant women following 2009 H1N1 influenza vaccine, VAERS, October 1, 2009 through February 28, 2010 (n=294).

	N	%
Pregnancy-specific outcomes
Spontaneous Abortion (< 20 weeks gestation) †	121	41.2
Stillbirth (≥ 20 weeks gestation)	19	6.5
Preterm deliveryb	7	2.4
Threatened abortion	4	1.4
Preterm labor	3	1.0
Maternal death c	2	0.7
Preeclampsia	2	0.7
Intrauterine growth restriction	2	0.7
Fetal hydronephrosis	1	0.3
Fetal tachycardia	1	0.3
Cleft lip d	1	0.3
Neonatal intraparenchymal hemorrhage	1	0.3
Intrauterine fetal death e	1	0.3
Subtotal	165	56.1
Non-pregnancy specific outcomes
Allergic reactions other than anaphylaxis	36	12.2
General or constitutional symptoms f†	28	9.5
Local reactions	10	3.4
Paresthesias	8	2.7
Bell’s palsy	5	1.7
Syncope	5	1.7
Dizziness†	5	1.7
Hypoesthesia	3	1.0
Headache†	3	1.0
Anaphylaxis	1	0.3
Other g†	25	8.5
Subtotal	129	43.9
Total	294	100.0

^aAdverse events based on main diagnosis following medical chart review

^bInfant of one mother died approximately one month after delivery.

^cMaternal deaths included a case of ruptured aortic aneurysm and a case of hemorrhagic shock. In both cases the neonates were born alive.

^d19 weeks gestational age when vaccinated

^eCould not be categorized as spontaneous abortion or stillbirth because the gestational age was unknown

^fDoes not include paresthesias, or headache.

^gIncludes: anxiety, arthralgia, asthenia, asthma, arthritis, blurred vision, chest pain, chronic bronchitis, cough, diarrhea, dyspnea, eye swelling, influenza, influenza like illness, lip injury, nail bleeding, panic attack, shingles, sneezing, tachycardia, tremors, unusual taste, upper respiratory infection (2), wheezing

^†Live H1N1 vaccine cases: two constitutional reactions and one of each