VII. Some Atypical Cases of Polioencephalitis

Rydenstam, Bo

doi:10.1111/j.0954-6820.1956.tb06257.x

Cited by 4 publications

(1 citation statement)

References 3 publications

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“…When estimating the total daily energy expenditure with Active-Q, we assumed that all participants slept for eight hours [29]. The true variation in the duration of sleep among individuals may reduce the accuracy of results, leading to an underestimation of validity of Active-Q.…”

Section: Discussionmentioning

confidence: 99%

Active-Q: Validation of the Web-Based Physical Activity Questionnaire Using Doubly Labeled Water

Bonn¹,

Lagerros²,

Christensen³

et al. 2012

J Med Internet Res

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BackgroundIncreased use of the Internet provides new opportunities for collecting data in large studies. The aim of our new Web-based questionnaire, Active-Q, is to assess total physical activity and inactivity in adults. Active-Q assesses habitual activity during the past year via questions in four different domains: (1) daily occupation, (2) transportation to and from daily occupation, (3) leisure time activities, and (4) sporting activities.ObjectiveThe objective of our study is to validate Active-Q’s energy expenditure estimates using the doubly labeled water (DLW) method, and to assess the reproducibility of Active-Q by comparing the results of the questionnaire completed by the same group on two occasions.MethodsThe validity and reproducibility of Active-Q were assessed in a group of 37 individuals, aged 20 to 65 years. Active-Q was distributed via email to the participants. The total energy expenditure of the participants was assessed using DLW for 11 consecutive days.ResultsThe median time to complete Active-Q was 6.1 minutes. The majority of participants (27/37, 73%) reported that the questionnaire was “easy” or “very easy” to answer. On average, Active-Q overestimated the total daily energy expenditure by 440 kJ compared with the DLW. The Spearman correlation between the two methods was r = 0.52 (P < .001). The intraclass correlation coefficient for total energy expenditure between the results of Active-Q completed on two occasions was 0.83 (95% CI 0.73-0.93).ConclusionsActive-Q is a valid and reproducible method of assessing total energy expenditure. It is also a user-friendly method and suitable for Web-based data collection in large epidemiological studies.

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Section: Discussionmentioning

confidence: 99%

Active-Q: Validation of the Web-Based Physical Activity Questionnaire Using Doubly Labeled Water

Bonn¹,

Lagerros²,

Christensen³

et al. 2012

J Med Internet Res

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V. Clinical Survey

Ström¹

1956

Journal of Internal Medicine

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During the 1953 epidemic altogether 968 cases of polimyelitis were admitted to the Stockholm Hospital for Infectious Diseases. Among these patients 633 were paralytic, i.e. 65.4 per cent. The sex distribution was almost exactly the same in the paralytic and non-paralytic groups, viz. 60 and 61 per cent male and 40 and 39 per cent female.The paralytic cuses alone will be dealt with in this chapter. The distribution by age groups and sex is tabulated below ( Table 1).

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