Internet-based monitoring of influenza-like illness (ILI) in the general population of the Netherlands during the 2003–2004 influenza season

Marquet, R. L.; Bartelds, A.I.M.; Noort, S P van; Koppeschaar, Carl; Paget, John; Schellevis, François G.; Zee, J. van der

doi:10.1186/1471-2458-6-242

Cited by 74 publications

(97 citation statements)

References 18 publications

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“…Participation through a web-based questionnaire has been offered to subjects enrolled in a large US cohort study of military personnel [11]. Recently, some studies have posted surveys on websites, recruiting participants whose contact information was unknown before participation [12][13][14]. The results of several of these studies are encouraging, suggesting that the use of the Internet is well-accepted by the participants and is an efficient tool for collecting epidemiological data [15].…”

Section: Introductionmentioning

confidence: 94%

Feasibility of recruiting a birth cohort through the Internet: the experience of the NINFEA cohort

et al. 2007

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The NINFEA cohort is an Italian birth cohort aiming at recruiting pregnant women through the Internet and following-up their children. To understand whether Internet-based recruitment was feasible we started a pilot in July 2005 targeted to pregnant women visiting the hospitals of the city of Turin (900,000 inhabitants), where we advertised the study. For this purpose we constructed a website (www.progettoninfea.it), with on-line questionnaires to be completed during pregnancy and at 6 and 18 months after delivery. Participants' characteristics were compared with those of women giving birth in Turin, which are routinely released as individual anonymous records. We also compared complete with partial respondents. We also carried out a survey of 122 women giving birth in the main Turin obstetric hospital to estimate the proportion of pregnant women with access to the Internet and awareness of the NINFEA cohort. By December 2006, we had recruited 670 women. Participation was associated with being older, a university graduate, primiparous and born in Italy. Complete response (n = 633) was associated with being primiparous and participation after the first trimester. In the survey, 66% (95% confidence interval: 56-74%; n = 80) of the women had access to the Internet and 42% (33-51%; n = 51) were aware of the study; 6.5% (2.9-12.5%; n = 8) had participated in the NINFEA cohort. Our study indicates that recruitment of an Internet-based birth cohort is feasible. As with many other types of birth cohort study, the participants are a self-selected sample. To minimise selection bias analyses should therefore be limited to internal comparisons.

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Section: Introductionmentioning

confidence: 94%

Feasibility of recruiting a birth cohort through the Internet: the experience of the NINFEA cohort

et al. 2007

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“…Many information technology-based influenza monitoring systems have recently been launched in America and Europe [3][4][5]11]. These systems can estimate influenza activity faster than conventional influenza surveillance systems.…”

Section: Discussion Principle Findingsmentioning

confidence: 99%

“…In Japan, the official sentinel surveillance system for influenza takes 1-2 weeks to report data about the intensity of influenza activity [2]. Development of information and communications technologies for influenza surveillance has recently increased throughout the world [3][4][5]. These systems can estimate influenza activity faster than conventional influenza surveillance systems.…”

Section: Introductionmentioning

confidence: 99%

A New Influenza-Tracking Smartphone App (Flu-Report) Based on a Self-Administered Questionnaire: Cross-Sectional Study (Preprint)

Fujibayashi¹,

Takahashi²,

Tanei³

et al. 2018

Preprint

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“…The study was conducted using data collected inthe cohort GrippeNet.fr, a web-based participative study conducted in France (25).Developed by the French National Institute of Health and Medical Research (Inserm), Pierre and Marie Curie University (UPMC) and the French Institute for Public Health Surveillance (InVS), this project is part of a broader European study,Influenzanet (http://www.influenzanet.eu) (26), whichallows monitoring ILI evolution directly in the general population.The inclusion criteria to participate in the GrippeNet.fr study include: 1) residency in France 2) comprehension of the French language 3) access to the Internet. Upon registration, participants were asked to complete a baseline questionnaire covering demographic factors (age, gender), geographicalfactors (location of home and work/school expressed at themunicipality level), socio-economic factors (household size and composition, occupation, educational level, number of daily contacts with groups of patients, children or elderly, daily transportation means), 6 and health-related factors (height and weight, diet, vaccination status, pregnancy status, smoking habits,major risk conditions, and opinion about seasonal influenza vaccination evaluated over three levels ("positive", "negative" or "neutral").Subsequently, they were invited to describe weekly clinical symptoms during the flu season.…”

Section: Methodsmentioning

confidence: 99%

Opinion about seasonal influenza vaccination among the general population 3 years after the A(H1N1)pdm2009 influenza pandemic

Boiron

Sarazin

Debin

et al. 2015

Vaccine

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, et al.. Opinion about seasonal influenza vaccination among the general population 3 years after the A(H1N1)pdm2009 influenza pandemic. Vaccine, Elsevier, 2015, 33 (48) Study design:The study was conducted using data collected from 5374 participants during the 2012/2013 season of the GrippeNet.fr study. The opinion about seasonal influenza vaccination was studied on three levels ("positive", "negative" or "neutral"). The link between the participant's characteristics and their opinion regarding the seasonal influenza vaccination were studied using a multinomial logistic regression with categorical variables. The "positive" opinion was used as the reference for identifying individuals being at risk of having a "neutral" or a "negative" opinion.Results:Among the participants, 39% reported having a positive opinion about seasonal influenza vaccine, 39% a neutral opinion, and 22% a negative opinion. Factors associated with a neutral or negative opinion were young age, low educational level, lack of contact with sick or elderly individuals, lack of treatment for a chronic disease and taking a homeopathic preventive treatment.

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Internet-based monitoring of influenza-like illness (ILI) in the general population of the Netherlands during the 2003–2004 influenza season

Cited by 74 publications

References 18 publications

Feasibility of recruiting a birth cohort through the Internet: the experience of the NINFEA cohort

Feasibility of recruiting a birth cohort through the Internet: the experience of the NINFEA cohort

A New Influenza-Tracking Smartphone App (Flu-Report) Based on a Self-Administered Questionnaire: Cross-Sectional Study (Preprint)

Opinion about seasonal influenza vaccination among the general population 3 years after the A(H1N1)pdm2009 influenza pandemic

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