Table 3 Associations between hospital and demographic factors and Hepatitis B case classification to the National Notifiable Disease Reporting System, six project hospitals in Fujian, Hainan, and Gansu Provinces, China, 2015
| Â | Total case-reports | Misclassified Cases | Correctly classified cases | Crude analysis for misclassification | Multivariable analysis for misclassification | ||
|---|---|---|---|---|---|---|---|
n | n (%) | n (%) | OR (95%CI) | p-value | aOR (95% CI) | p-value | |
Province | Â | Â | Â | Â | Â | Â | Â |
 Fujian | 881 | 342 (45.7%) | 539 (80.3%) | referent | < 0.05 | reference | < 0.05 |
 Hainan | 267 | 157 (21.0%) | 110 (16.4%) | 2.4 (1.8–3.2) | 1.8 (1.3–2.4) | ||
 Gansu | 272 | 250 (33.4%) | 22 (3.3%) | 18.8 (11.8–30.0) | 12.7 (7.7–20.1) | ||
Hospital Grade | |||||||
 2 | 406 | 279 (37.2%) | 127 (18.9%) | 2.6 (2.0–3.3) | < 0.05 | 1.6 (1.2–2.2) | < 0.05 |
 3 | 1014 | 470 (62.8%) | 544 (81.1%) | reference | reference | ||
Gender | |||||||
 Male | 991 | 479 (64.0%) | 512 (76.3%) | reference | < 0.05 | reference | 0.06 |
 Female | 429 | 270 (36.0%) | 159 (23.7%) | 1.8 (1.5–2.3) | 1.3 (0.9–1.7) | ||
Age group (years) | |||||||
 0–24 | 130 | 65 (8.7%) | 65 (9.7%) | 0.6 (0.4–0.9) | < 0.05 | 0.6 (0.4–1.1) | 0.29 |
 25–39 | 417 | 205 (27.4%) | 212 (31.6%) | 0.6 (0.4–0.8) | 0.8 (0.5–1.2) | ||
 40–59 | 610 | 315 (42.1%) | 295 (44.0%) | 0.6 (0.5–0.9) | 0.7 (0.5–1.1) | ||
  ≥ 60 | 263 | 164 (21.9%) | 99 (14.8%) | reference | reference | ||
HBV related departments | |||||||
 Yes | 819 | 272 (36.3%) | 547 (81.5%) | reference | < 0.05 | reference | < 0.05 |
 No | 601 | 477 (63.7%) | 124 (18.5%) | 7.8 (6.1–9.9) | 5.3 (4.1–7.0) | ||
Total | 1420 | 839 (100%) | 671 (100%) | – | – | – | – |