TABLE 2

Outpatient Fever Visits Following Measles-Containing Vaccines Identified from Electronic Records Among 4- to 6-Year-Olds: 2006–2008

Post-Vaccination, dMMRV, N=86 570 DosesMMR + Varicella, N=39 536 DosesMMR, N= 59 538 DosesVaricella, N= 57 366 Doses
Rate/10 000 Doses (Number Events)Adjusted Rate/100 PY (95% CI)Rate/10 000 Doses (Number Events)Adjusted Rate/100 PY (95% CI)Rate/10 000 Doses (Number Events)Adjusted Rate/100 PY (95% CI)Rate/10 000 Doses (Number Events)Adjusted Rate/100 PY (95% CI)
7–10a5.7 (49)5.2 (3.9–6.8)9.6 (38)8.8 (6.2–12)4.9 (29)4.4 (3–6.4)6.3 (36)5.7 (4–7.9)
0–42b57.9 (501)5 (4.5–5.4)74.9 (296)6.4 (5.7–7.2)60 (357)5.2 (4.6–5.7)51.2 (294)4.4 (3.9–4.9)
  • a None of the 7–10 d pairwise rate/PY comparisons were statistically significant. P = .09 for rates/PY of fever visits 7–10 d MMR + V compared with MMR alone, adjusted for vaccine exposure, age, site, year, influenza season.

  • b None of the comparisons between day 0–42 fever visits were statistically significant.