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Conference Paper: Lower Leg Length in Early Life in Chinese Children

TitleLower Leg Length in Early Life in Chinese Children
Authors
Issue Date1996
PublisherMedcom Limited.
Citation
The 1st Joint Scientific Meeting of Hong Kong College of Paediatricians and Guangdong Pediatric Society of the Chinese Medical Association, Guangzhou, China, 25 May 1996. In Hong Kong Journal of Paediatrics, 1996, v.1 n. 2, p. 213-214 How to Cite?
AbstractAim Lower leg length (LLL) gives a more accurate estimate of short-term linear growth than total body length as it is less influenced by measuring error. The aim of this work was to construct reference values for LLL in healthy Chinese infants during the first year of life. Material and Methods Seventy-one Hong Kong born healthy full-term Chinese infants were studied every second month from birth to one year of age. LLL was measured by means of the hand-held knemometer (manufactured by the FORCE Institute, Denmark), LLL is was estimated by the means of a pair of electronic callipers which automatically recorded the measurement when the pressure applied on the heel reached a preset value. The measuring system is based on a magnetic encoder with a resolution of 0.01 mm. Five sequential measurements were performed and the result of the measurement sequence was expressed as the average of the last four measurements. Results The mean and SD of LLL were computed at the different ages between birth and one year of age (both sexes pooled); both estimates were fitted by a second degree polynomial function: mean=125.724+13 0291*t-1.05321*t2+0.041012*t3 SD=3.67018+0.85278*t-0.092090*t2+0.0038488*t3 where t is age in years The mean values were similar to the mean values of Danish infants being followed between birth and six months of age, but the SD values were higher in the Danish series. In our study the boys had on the average significantly higher LLL values than girls; 0.35 SDS in comparison with -0.35 SDS based on our gender combined reference standard (t test, p<0.05 for all ages). At this stage we present the pooled data results for comparison with the Danish study. Conclusion This is the first report on LLL reference values between birth and one year of age in normal infants. Our mean LLL values was similar to the values reported in Danish infants during the first 6 months of life implying no ethnic group differences for this body measurement. The reference values would be useful in metabolic and nutritional studies of different patient groups. This study was supported by the Faculty of Medicine, University of Hong Kong
Persistent Identifierhttp://hdl.handle.net/10722/106453
ISSN
2015 Impact Factor: 0.194
2015 SCImago Journal Rankings: 0.123

 

DC FieldValueLanguage
dc.contributor.authorLow, LCKen_HK
dc.contributor.authorKwan, EYWen_HK
dc.contributor.authorTsang, AMCen_HK
dc.contributor.authorYeung, CYen_HK
dc.contributor.authorKarlberg, JPEen_HK
dc.date.accessioned2010-09-25T23:16:23Z-
dc.date.available2010-09-25T23:16:23Z-
dc.date.issued1996en_HK
dc.identifier.citationThe 1st Joint Scientific Meeting of Hong Kong College of Paediatricians and Guangdong Pediatric Society of the Chinese Medical Association, Guangzhou, China, 25 May 1996. In Hong Kong Journal of Paediatrics, 1996, v.1 n. 2, p. 213-214en_HK
dc.identifier.issn1013-9923en_HK
dc.identifier.urihttp://hdl.handle.net/10722/106453-
dc.description.abstractAim Lower leg length (LLL) gives a more accurate estimate of short-term linear growth than total body length as it is less influenced by measuring error. The aim of this work was to construct reference values for LLL in healthy Chinese infants during the first year of life. Material and Methods Seventy-one Hong Kong born healthy full-term Chinese infants were studied every second month from birth to one year of age. LLL was measured by means of the hand-held knemometer (manufactured by the FORCE Institute, Denmark), LLL is was estimated by the means of a pair of electronic callipers which automatically recorded the measurement when the pressure applied on the heel reached a preset value. The measuring system is based on a magnetic encoder with a resolution of 0.01 mm. Five sequential measurements were performed and the result of the measurement sequence was expressed as the average of the last four measurements. Results The mean and SD of LLL were computed at the different ages between birth and one year of age (both sexes pooled); both estimates were fitted by a second degree polynomial function: mean=125.724+13 0291*t-1.05321*t2+0.041012*t3 SD=3.67018+0.85278*t-0.092090*t2+0.0038488*t3 where t is age in years The mean values were similar to the mean values of Danish infants being followed between birth and six months of age, but the SD values were higher in the Danish series. In our study the boys had on the average significantly higher LLL values than girls; 0.35 SDS in comparison with -0.35 SDS based on our gender combined reference standard (t test, p<0.05 for all ages). At this stage we present the pooled data results for comparison with the Danish study. Conclusion This is the first report on LLL reference values between birth and one year of age in normal infants. Our mean LLL values was similar to the values reported in Danish infants during the first 6 months of life implying no ethnic group differences for this body measurement. The reference values would be useful in metabolic and nutritional studies of different patient groups. This study was supported by the Faculty of Medicine, University of Hong Kong-
dc.languageengen_HK
dc.publisherMedcom Limited.en_HK
dc.relation.ispartofHong Kong Journal of Paediatricsen_HK
dc.titleLower Leg Length in Early Life in Chinese Childrenen_HK
dc.typeConference_Paperen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1013-9923&volume=1 &issue=No. 2&spage=213&epage=214&date=1996&atitle=Lower+Leg+Length+in+Early+Life+in+Chinese+Childrenen_HK
dc.identifier.emailLow, LCK: lcklow@hkucc.hku.hken_HK
dc.identifier.emailKwan, EYW: eywkwan@hkucc.hku.hken_HK
dc.identifier.emailTsang, AMC: amctsang@hku.hken_HK
dc.identifier.emailYeung, CY: hrmpycy@hkucc.hku.hken_HK
dc.identifier.emailKarlberg, JPE: jpekarl@hkucc.hku.hken_HK
dc.identifier.authorityLow, LCK=rp00337en_HK
dc.identifier.authorityKarlberg, JPE=rp00400en_HK
dc.description.naturelink_to_OA_fulltext-
dc.identifier.hkuros22428en_HK
dc.identifier.volume1en_HK
dc.identifier.issue2en_HK
dc.identifier.spage213en_HK
dc.identifier.epage214en_HK

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