Table 2 Seroprevalence of positive measles antibodies (p), critical prevalence of antibodies associated with herd immunity (pc) and establishment of herd immunity (HI) - comparing worst, best and absolute case scenario
Characteristics | Establishment of herd immunity (HI) | ||||||||
|---|---|---|---|---|---|---|---|---|---|
Worst Casea (n = 1541) | Best Caseb (n = 1541) | Absolute Casec (n = 1447) | |||||||
p (%) (95% CI) | pc (%) (range) | HI | p (%) (95% CI) | pc (%) (range) | HI | p (%) (95% CI) | pc (%) (range) | HI | |
Total | 87.0 (85.0–89.0) | 89.4 (87.9–90.8) | - | 93.0 (92.0–94.0) | 89.1 (87.6–0.5) | + | 93.0 (91.0–94.0) | 89.1 (87.6–90.5) | + |
Age (year) | |||||||||
6–9 | 90.0 (87.0–94.0) | 89.2 (87.4–90.7) | + | 95.0 (92.0–97.0) | 89.0 (87.6–90.5) | + | 95.0 (92.0–97.0) | 89.0 (87.6–90.5) | + |
15 – 24 | 74.0 (70–78) | 90.4 (88.9–91.8) | - | 85.0 (82.0–89.0) | 89.5 (88.0–90.9) | - | 84.0 (80.0–87.0) | 89.5 (87.6–90.5) | - |
45–54 | 94.0 (92.0–96.0) | 89.0 (87.6–90.5) | + | 97.0 (96.0 – 98.0) | 88.9 (87.5–90.4) | + | 97.0 (96.0–98.0) | 88.9 (87.5–90.4) | + |
Gender | |||||||||
Male | 85.0 (83.0–88.0) | 89.5 (88.0–90.9) | - | 92.0 (90.0–94.0) | 89.1 (87.7–90.6) | + | 92.0 (89.0–94.0) | 89.1 (87.7–90.6) | + |
Female | 88.0 (86.0–91.0) | 89.3 (87.9–90.7) | - | 94.0 (92.0–96.0) | 89.0 (87.6–90.5) | + | 94.0 (92.0–95.0) | 89.0 (87.6–90.5) | + |
Ethnicity | |||||||||
Malay | 86.0 (83.0–88.0) | 89.4 (87.9–90.8) | - | 92.0 (91.0–94.0) | 89.1 (87.7–90.6) | + | 92.0 (90.0–94.0) | 89.1 (87.7–90.6) | + |
Chinese | 90.0 (85.0–94.0) | 89.2 (87.8–90.7) | + | 93.0 (90.0–97.0) | 89.1 (87.6–90.5) | + | 93.0 (90.0–97.0) | 89.1 (87.6–90.5) | + |
Indian | 89.0 (85.0–92.0) | 89.3 (87.8–90.7) | - | 94.0 (92.0–97.0) | 89.0 (87.6–90.5) | + | 94.0 (92.0–97.0) | 89.0 (87.6–90.5) | + |
Others | 93.0 (83.0–103.0) | 89.1 (87.6–90.5) | + | 96.0 (89.0–104.0) | 88.8 (87.4–90.4) | + | 96.0 (89.0–104.0) | 88.8 (87.4–90.4) | + |