Table 3.
Diphtheria protectivity (≥0.1 IU/mL) rates of subjects by demographic characteristics
| All | Children (2–17 years old) | Adults (18–60 years old) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Variable | Protected | Susceptible | Protected | Susceptible | Protected | Susceptible | ||||||
| n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | n | % (95% CI) | |
| Overall | 1424 | 42.9 (41.3, 44.6) | 1893 | 57.1 (55.4, 58.7) | 629 | 61.9 (58.9,64.8) | 387 | 38.1 (35.2, 41.1) | 795 | 34.6 (32.6, 36.5) | 1506 | 65.4 (63.5, 67.4) |
| Sociodemographic | ||||||||||||
| Gender | ** | * | ||||||||||
| Male | 645 | 47.3 (44.6,49.9) | 719 | 52.7 (50.1, 55.4) | 331 | 62.5 (58.2, 66.5) | 199 | 37.5 (33.5, 41.8) | 314 | 37.6 (34.4, 41.0) | 520 | 62.4 (59.0, 65.6) |
| Female | 779 | 39.9 (37.7, 42.1) | 1174 | 60.1 (57.9, 62.3) | 298 | 61.3 (56.9, 65.5) | 188 | 38.7 (34.5, 43.1) | 481 | 32.8 (30.4, 35.2) | 986 | 67.2 (64.8, 69.6) |
| Race | ** | ** | ||||||||||
| Malay | 890 | 40.2 (38.2, 42.3) | 1323 | 59.8 (57.7, 61.8) | 405 | 595 (55.7, 63.1) | 276 | 40.5 (36.9, 44.3) | 485 | 31.7 (29.4, 34.0) | 1047 | 68.3 (66.0, 70.60) |
| Chinese | 88 | 40.8 (34.5, 47.5) | 129 | 59.2 (52.5, 65.5) | 30 | 56.6 (43.1, 69.6) | 23 | 43.4 (30.4, 56.9) | 59 | 35.8 (28.8, 43.4) | 106 | 64.2 (56.6, 71.2) |
| Indian | 181 | 53.4 (48.1, 58.6) | 158 | 46.6 (41.4, 51.9) | 72 | 72.7 (63.10, 80.6) | 27 | 27.3 (19.4, 36.9) | 109 | 45.4 (39.2, 51.8) | 131 | 54.6 (48.2, 60.8) |
| Bumiputera Sabah | 175 | 48.7 (43.6, 53.9) | 184 | 51.3 (46.1, 56.4) | 80 | 64.5 (56.4, 73.2) | 44 | 35.5 (26.8, 43.6) | 95 | 40.4 (34.3, 46.8) | 140 | 59.6 (53.2, 65.7) |
| Bumiputera Sarawak | 77 | 48.7 (41.0, 56.5) | 81 | 51.3 (43.5, 59) | 36 | 75 (60.9, 85.2) | 12 | 25.0 (14.8, 39.1) | 41 | 37.3 (28.8, 46.7) | 69 | 62.7 (53.3, 71.2) |
| Others | 12 | 40.0 (24.3, 58.1) | 18 | 60.0 (41.9, 75.7) | 6 | 54.5 (26.8, 79.7) | 5 | 45.5 (20.3,73.2) | 6 | 31.6 (14.9, 54.9) | 13 | 68.4 (45.1, 85.1) |
| Age groupa | ||||||||||||
| 2–6 | 214 | 66.3 (60.9, 71.2) | 109 | 33.7 (28.8, 39.1) | ||||||||
| 7–12 | 257 | 70.2 (65.3, 74.7) | 109 | 29.8 (25.3, 34.7) | ||||||||
| 13–17 | 158 | 48.3 (42.9, 53.7) | 169 | 51.7 (46.3, 57.1) | ||||||||
| 18–30 | 341 | 35.6 (32.7, 38.7) | 616 | 64.4 (61.3, 67.3) | ||||||||
| 31–40 | 193 | 33.2 (29.5, 37.2) | 388 | 66.8 (62.8, 70.5) | ||||||||
| 41–50 | 148 | 33.4 (29.2, 37.9) | 295 | 66.6 (62.1, 70.8) | ||||||||
| 51–60 | 113 | 35.3 (30.3, 40.7) | 207 | 64.7 (59.3, 69.7) | ||||||||
* Pearson’s Chi-Square test p-value <0.05
** Pearson’s Chi-Square test p-value <0.001
a Extended Mantel-Haenszel chi square for linear trend= 178.1, p-value <0.001