Direct Comparison of Two New Actigraphs and Polysomnography in Children and Adolescents

Meltzer, Lisa J.; Walsh, Colleen M.; Traylor, Joel; Westin, Anna

doi:10.5665/sleep.1608

Cited by 221 publications

(277 citation statements)

References 28 publications

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“…While they are important considerations for studies using accelerometer-measured sleeping parameters, the conclusions of our study were not affected by these concerns. First, the sleeping profile of the Actiwatch 2 validation study Dr. Kawada was referring to, Meltzer et al 2012 [1], was similar to our sample (wake after sleep onset 69.2 vs 73.7 min, sleep efficiency 82.3 vs 86.1%); therefore, the results of this Actiwatch 2 validation study should be able to extend to our sample. Second, we reported the agreement of Actiwatch 2 and Actigraph for high, medium, and low thresholds plus other four classification methods (Tables 3 and 4 in our paper), and researchers can decide which classification method to be used according to the agreements.…”

supporting

confidence: 67%

Validation study of accelerometer in measuring some sleep parameters in adults—reply

Lee

2017

Sleep Breath

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supporting

confidence: 67%

Validation study of accelerometer in measuring some sleep parameters in adults—reply

Lee

2017

Sleep Breath

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“…Actigraphy is a validated wristwatch-like device that distinguishes sleep from wakefulness based on accelerometer measured movement. 18,19 Caregivers simultaneously completed a daily sleep diary which was used to identify bedtime and wake time, as well as to identify when the device was removed. Data were analyzed and interpreted centrally by a single technologist and a single pediatric sleep medicine specialist, respectively.…”

Section: Actigraphymentioning

confidence: 99%

Sleep/Wake Patterns and Parental Perceptions of Sleep in Children Born Preterm

Biggs

Meltzer

Tapia

et al. 2016

Journal of Clinical Sleep Medicine

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Study Objectives:To compare sleep/wake patterns in children born preterm in Australia vs Canada and determine cultural differences in the relationship between parental perception of sleep and actual sleep behaviors. Methods: Australian and Canadian children born preterm were recruited from the Caffeine for Apnea of Prematurity trial (n = 188, 5-12 y) and underwent 14 days actigraphy monitoring. Parents completed the National Sleep Foundation 2004 Sleep in America questionnaire. Cross-cultural differences in sleep characteristics assessed by actigraphy and parent-reported questionnaire were examined. Correlational analyses determined the associations between parental perceptions of child sleep need and sleep behavior. Results: Actigraphy showed preterm children obtained, on average, 8 h sleep/night, one hour less than population recommendations for their age. There was no difference in total sleep time (TST) between Australian and Canadian cohorts; however, bed and wake times were earlier in Australian children. Bedtimes and TST varied by 60 minutes from night to night in both cohorts. Parent-reported child TST on the National Sleep Foundation questionnaire was 90 minutes longer than recorded by actigraphy. Both bedtime and TST on weekdays and weekends were related to parental perception of child sleep need in the Australian cohort. Only TST on weekdays was related to parental perception of child sleep need in the Canadian cohort. Conclusions: This study suggests that short sleep duration and irregular sleep schedules are common in children born preterm. Cultural differences in the association between parental perception of child sleep need and actual sleep behaviors provide important targets for future sleep health education.

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“…4 The Actiwatch2 (Philips Respironics, Oregon, United States) is a widely used actigraph worn on the nondominant wrist that has the capability to determine sleep and wake patterns. 5 It has been validated against PSG in healthy children 6 and adults. 3 Sleep parameters can be derived from Actiwatch2 recordings using three different threshold settings (low, medium, or high) for detection of wake-related accelerations (movements) before…”

Section: Introductionmentioning

confidence: 99%

Validity of Actigraphy in Measurement of Sleep in Young Adults With Type 1 Diabetes

Farabi

Quinn

Carley

2017

Journal of Clinical Sleep Medicine

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Study Objectives: Accurate objective measurement of sleep, an important health behavior, is needed. Individuals with type 1 diabetes mellitus (T1DM) have altered sleep architecture and reduced sleep quality in comparison with healthy controls. The aim of this investigation was to compare a commonly used actigraphy device, Actiwatch2, with polysomnography (PSG)-based measures of sleep in young adults with T1DM, and to determine which Actiwatch2 threshold setting provides the best correspondence. Methods: Subjects age 18-30 years with T1DM wore the Actiwatch2 while simultaneously undergoing in-laboratory PSG. Sleep parameters were derived from the Actiwatch2 using the three different sensitivity thresholds (low, medium, and high) provided by the manufacturer and compared with sleep parameters from PSG. Statistical analysis included intraclass correlation coefficients and Bland-Altman plots for comparison of sleep parameters. Cohen kappa and the prevalence-adjusted and bias-adjusted kappa (PABAK) were calculated to determine agreement between epoch-by-epoch sleep and wake data measured by the PSG versus Actiwatch2. Results: Twenty-seven subjects were included in the analysis. The low threshold setting provided the greatest agreement and least bias in comparison with PSG for sleep parameters (intraclass correlation coefficient range 0.38 to 0.77). Mean differences between the low setting and PSG were nonsignificant (P > .65) for all sleep parameters except sleep onset latency (P = .04). All three settings provided approximately equivalent and moderate epoch-by-epoch agreement with the PSG (PABAK coefficients ranging from 0.56 to 0.63). Conclusions: When measuring sleep with the Actiwatch2 in young adults with T1DM, the low threshold setting provides the most accurate estimates of sleep parameters in comparison with PSG.

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Direct Comparison of Two New Actigraphs and Polysomnography in Children and Adolescents

Cited by 221 publications

References 28 publications

Validation study of accelerometer in measuring some sleep parameters in adults—reply

Validation study of accelerometer in measuring some sleep parameters in adults—reply

Sleep/Wake Patterns and Parental Perceptions of Sleep in Children Born Preterm

Validity of Actigraphy in Measurement of Sleep in Young Adults With Type 1 Diabetes

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