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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

From: Using a hepatitis B surveillance system evaluation in Fujian, Hainan, and Gansu provinces to improve data quality and assess program effectiveness, China, 2015

  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        
 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%)