Table 3. Comparison of influenza-associated disease burden potentially averted through different maternal immunization strategies, Kenya, 2010–2014.
| Pregnant Women | Infants aged 0–5 months | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Immunization Strategy | Illnesses Averted (95% CI) | Medical Visits Averted (95% CI) | Hospitalizations Averted (95% CI) | Deaths Averted (95% CI) | Averted fraction,% (range by year) | Illnesses Averted (95% CI) | Medical Visits Averted (95% CI) | Hospitalizations Averted (95% CI) | Deaths Averted (95% CI) | Averted fraction,% (range by year) |
| Assuming 55% coverage for all strategies | ||||||||||
| Routine Antenatal Care | 69,780 (37,097–103,671 | 9071 (4823–13,477) | 403 (214–599) | 58 (8–123) | 25.0 (5.8–29.2) | 27,575 (18,352–38,158) | 11,444 (7616–15,835) | 737 (490–1020) | 98 (10–204) | 17.6 (3.3–30.1) |
| Annual Campaign | 57,799 (30,579–91,575) | 7514 (3975–11,905) | 334 (177–529) | 58 (7–108) | 20.7 (9.8–35.9) | 29,712 (19,894–40,862) | 12,331 (8256–16,958) | 794 (532–1092) | 113 (11–234) | 18.9 (6.3–32.3) |
| Semiannual Campaign | 65,828 (34,250–98,496) | 8558 (4453–12,804) | 380 (198–569) | 55 (7–117) | 23.6 (7.2–30.3) | 27,529 (18,343–38,057) | 11,424 (7612–15,794) | 736 (490–1017) | 100 (10–208) | 17.5 (4.2–30.0) |
| Assuming different coverage per strategy | ||||||||||
| Routine Antenatal Care (69% coverage) | 87,690 (46,554–130,097) | 11,400 (6052–16,913) | 507 (269–752) | 73 (10–155) | 31.4 (7.2–36.7) | 34,692 (23,009–47,844) | 14,397 (9549–19,855) | 927 (615–1279) | 123 (12–256) | 22.1 (4.1–37.8) |
| Annual Campaign (34% coverage) | 35,650 (18,887–56,560) | 4635 (2455–7353) | 206 (109–327) | 30 (4–67) | 12.8 (6.1–22.2) | 18,257 (12,321–25,307) | 7576 (5113–10,502) | 488 (329–676) | 69 (7–145) | 11.6 (3.9–19.9) |
| Semiannual Campaign (69% coverage) | 82,719 (42,984–123,613) | 10,753 (5588–16,070) | 478 (248–714) | 69 (9–146) | 29.6 (9.0–38.1) | 34,629 (22,999–47,719) | 14,371 (9544–19,803) | 925 (615–1275) | 126 (12–261) | 22.0 (5.3–37.7) |