Rob van Hest Capture-recapture Methods in Surveillance - RePub ...

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Underreporting of malaria in the Netherlands underreporting occurred to a lesser or greater extent in relationship with the dangerous falciparum malaria or the more benign types. Results The response rate of the laboratories in the survey in 1996 was 83.2%. Some of the participating laboratories reported not performing microscopic diagnosis of malaria (4.7%) or did not identify any malaria case (5.6%), resulting in 72.9% of the laboratories reporting at least one case of malaria. In the laboratory survey P. falciparum accounted for 57.0% of the malaria cases. The distribution of the different malaria parasites in the laboratory survey is shown in Table 4.1 In the RNID 60% P. falciparum could be found against 69% among the hospital admissions. In the participating laboratories 535 cases of malaria were microscopically identified in 1996, while physicians officially notified 311 malaria cases and 330 malaria patients were admitted to a hospital. To increase the validity of the capture-recapture analysis, the matched data file was corrected for 12 cases notified to the RNID in 1997 but found to be diagnosed in the laboratories in 1996 and 15 cases notified in 1996 but actually diagnosed in the laboratories in 1995. After this correction for late notification a total of 667 malaria patients were known in at least one of the registers (Table 4.2). For two cases in the laboratory survey insufficient identifiers for perfect matching were available and these patients were excluded from the capturerecapture analysis. Figure 4.1 shows the distribution of the 665 malaria patients over the different malaria registrations and the overlap between these lists, as used in the capturerecapture analysis. A substantial number of malaria patients are only known to the RNID or the hospital admission register and do not appear in the laboratory survey. Table 4.1 Distribution of diagnosed malaria parasites (Plasmodium species) and their percentage of the total number of malaria cases identified in the Netherlands in 1996. Plasmodium species Malaria patients (%) P. falciparum 305 (57.0 %) P. vivax 165 (30.8 %) P. ovale 43 (8.0 %) P. malariae 7 (1.3 %) Parasite unknown 15 (2.8 %) 55
Chapter 4 Table 4.2 The number of malaria patients identified in each of the three malaria registrations and the number of malaria patients registered in at least one of malaria registers in 1996. Notified to the RNID* 311 Hospital admissions* 330 Diagnosed in the laboratories* 535 Registered in at least one of the registers* † 667 * After correction for duplicate reports † After correction for late notification Figure 4.1 Distribution of malaria cases in the Netherlands over three registers in 1996. Laboratory survey (n=533) 56 189 94 127 123 54 37 41 Notification Office (n=308) Hospital admissions (n=328)
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Capture-recapture Methods in Survei
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Colofon Capture-recapture methods i
Page 5 and 6: Promotiecommissie Promotor: Prof.dr
Page 8: Contents Page 1 Introduction 9 2 Me
Page 11 and 12: Chapter 1 1.1 Assessing completenes
Page 13 and 14: Chapter 1 94% among AIDS patients w
Page 15 and 16: Table 1.1 Objectives, methods, data
Page 17 and 18: Researchers Objective Method Data-s
Page 19 and 20: Chapter 1 source capture-recapture
Page 21 and 22: Chapter 1 32. Bradley BL, Kerr KM,
Page 24 and 25: 2 Methodology of capture-recapture
Page 26 and 27: Methodology of capture-recapture an
Page 36: Methodology of capture-recapture an
Page 39 and 40: Chapter 3 3.1 Application of captur
Page 41 and 42: Table 3.1 Published capture-recaptu
Page 43 and 44: Disease Authors Objective Method Da
Page 49 and 50: Chapter 3 3.3 References 1. Hook EB
Page 51 and 52: Chapter 3 52. Reintjes R, Termorshu
Page 53 and 54: Chapter 4 Abstract The aim of this
Page 55: Chapter 4 Methods Nearly all Dutch
Page 59 and 60: Chapter 4 diagnosis. Other patients
Page 61 and 62: Chapter 4 stratify the population i
Page 63 and 64: Chapter 4 25. Lambeth, Southwark an
Page 65 and 66: Chapter 5 Abstract To estimate inci
Page 67 and 68: Chapter 5 patients. Capture-recaptu
Page 69 and 70: Chapter 5 Figure 5.1 Four regions o
Page 71 and 72: Chapter 5 Hospital records From 385
Page 73 and 74: Chapter 5 Table 5.1 Epidemiological
Page 75 and 76: Table 5.2 Number and proportion of
Page 77 and 78: Chapter 5 cautious about the associ
Page 79 and 80: Chapter 5 Incidence of community-ac
Page 81 and 82: Chapter 6 Abstract The aim of this
Page 83 and 84: Chapter 6 3. Hospitalised patients
Page 85 and 86: Chapter 6 Record-linkage of all 537
Page 87 and 88: Chapter 6 Figure 6.1 Schematic view
Page 89 and 90: Chapter 6 Table 6.2 Total and strat
Page 91 and 92: Chapter 6 administrative discrepanc
Page 93 and 94: Chapter 6 the patients, and complet
Page 96 and 97: 7 Undetected burden of tuberculosis
Page 98 and 99: Introduction Underreporting of tube
Page 100 and 101: Underreporting of tuberculosis in t
Page 102 and 103: Table 7.1 Total and subset numbers
Page 104 and 105: Table 7.2 Capture-recapture estimat
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Underreporting of tuberculosis in t
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Underreporting of tuberculosis in t
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Chapter 8 Abstract In 1999 the Enha
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Chapter 8 bacteriological confirmat
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Chapter 8 Results Table 8.1 shows t
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Table 8.3 Annual and overall observ
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Table 8.4 Annual and overall estima
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Chapter 8 interaction however, i.e.
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Chapter 8 shows that observed under
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9 Estimating the coverage of tuberc
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Introduction Estimating targeted mo
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Estimating targeted mobile tubercul
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References Estimating targeted mobi
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10 Estimating infectious diseases i
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Introduction Estimating infectious
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Estimating infectious disease incid
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Study Disease and number of patient
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4. Gallay A, Vaillant V, Bouvet P,
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Table 10.3 Comparison of the variou
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Discussion Estimating infectious di
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Chapter 11 The aim of this thesis i
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Chapter 11 overestimation of the nu
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Chapter 11 clinicians to the Public
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Chapter 11 operation with the chest
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Chapter 11 of the proportion of fal
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Chapter 11 Question 3: What is the
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Chapter 11 11.2 Some findings of th
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Chapter 11 • To improve timelines
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Summary Summary Surveillance is an
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Summary linkage of notification and
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Samenvatting Samenvatting Surveilla
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Samenvatting subgroepen binnen de b
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Acknowledgements Acknowledgements W
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Curriculum vitae Rob van Hest was b
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Publications This thesis Van Hest N
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