Timeliness of infant vaccination and factors related with delay in Flanders, Belgium

Lernout, Tinne; Theeten, Heidi; Hens, Niel; Braeckman, Tessa; Roelants, Mathieu; Hoppenbrouwers, Karel; Damme, Pierre Van

doi:10.1016/j.vaccine.2013.10.084

Cited by 65 publications

(69 citation statements)

References 17 publications

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“…3 Studies in other countries show similar patterns, with a drop in timeliness of vaccination between 8 and 18 months. 14,18 This suggests that the current practice of using coverage rates at 24 months (or earlier time points), without consideration of timeliness, to evaluate immunization programs masks the true risk for children who may have received their vaccinations too early or late, leaving them vulnerable to vaccinepreventable diseases. Several studies have identified the need to assess timeliness of vaccination, since only considering vaccination levels at a given age overestimates protection.…”

Section: Discussionmentioning

confidence: 99%

“…Several studies have identified the need to assess timeliness of vaccination, since only considering vaccination levels at a given age overestimates protection. 14,15,17 Currently, timeliness is not routinely used as an indicator to evaluate immunization programs in Alberta and elsewhere in Canada. 20,21 Recently, the Canadian…”

Section: Discussionmentioning

confidence: 99%

“…9 In countries with high vaccination uptake, timeliness is also an important public health goal, as non-adherence to recommended vaccination schedules could undermine the benefits of immunization at both the individual and population level. Despite this, only the United States has closely monitored timeliness, 7,8,[10][11][12] with just a few studies from Europe [13][14][15] and one from Australia. 1 Little is known about timeliness of vaccination in Canada as only one study has examined "up-to-date" status of children under two years of age in Nova Scotia.…”

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confidence: 99%

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Timeliness and completeness of routine childhood vaccinations in children by two years of age in Alberta, Canada

Saini

MacDonald

McNeil

et al. 2017

Can J Public Health

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OBJECTIVES: Assessing timeliness and completeness of vaccine administration is important for evaluating the effectiveness of immunization programs. Few studies have reported timeliness, particularly in Canada. The objective of this study was to examine timeliness of the receipt of vaccination for each routine childhood recommended vaccine by 24 months of age among children in a community-based pregnancy cohort in Calgary, Alberta.METHODS: Survey data from a community-based pregnancy cohort in Alberta were linked to Public Health vaccination records of children (n = 2763). The proportion of children receiving early, timely, delayed, or no vaccination was calculated. A dose was considered early if it was administered before the recommended age in days as per the vaccination schedule, timely if administered at any time from start of recommended age in days to age in days when delay counts were initiated, and delayed if it was administered on or after age in days when delay counts were initiated. Series completion rates were also calculated. RESULTS:For multi-dose vaccines, over 80% of children had timely doses at 2, 4 and 6 months. By 12 months, this proportion decreased to 65% (95% CI: 63%-66%) for meningococcal conjugate group C, 61% (95% CI: 59%-62%) for measles antigen-containing vaccines and 64% (95% CI: 62%-65%) for varicella antigen-containing vaccines. At 18 months, only 55% (95% CI: 53%-56%) of the children had a timely 4 th dose of diphtheria, acellular pertussis, tetanus, polio, and Haemophilus influenzae type b vaccine. Eventual series completion rate for all recommended vaccines was 77% (95% CI: 75%-79%). CONCLUSION:The timeliness and completeness of routine childhood vaccination in preschool children in this community-based pregnancy cohort is lower than provincial targets. Data on timeliness of vaccination can inform further work on barriers and enablers to vaccination in order to meet provincial targets.KEY WORDS: Vaccination; immunization; timeliness; completeness; child La traduction du résumé se trouve à la fin de l'article.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Timeliness and completeness of routine childhood vaccinations in children by two years of age in Alberta, Canada

Saini

MacDonald

McNeil

et al. 2017

Can J Public Health

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“…In Fig. 4 we show the agespecific coverage of DTP3 for the urban and suburban areas of La Plata and also include the ones for Flanders (Belgium) [21] and Armenia [22] to show that the delays detected in other regions are similar to those found in La Plata, or they could be even greater.…”

Section: Assessment Of the Effect Of Changing The Vaccination Profilementioning

confidence: 95%

“…Data from Flanders (Belgium)[21] and Armenia[22] are shown for comparative purposes. The vertical line indicates the age of immunization recommended by the Argentinean and Armenian National Vaccination Schedules.…”

mentioning

confidence: 99%