Spirometric Standards from 387 Healthy New Zealand Children

Liang, Allen; Pulley, B.; Salive, H. T.; Harris, E. A.

doi:10.1111/j.1445-5994.1975.tb04579.x

Cited by 5 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Macfie et al , in a study of lung volumes and expiratory flows in New Zealanders, included only 42 Pacific Islanders, all children 28 . Similarly, Liang 31 and Asher et al 32 studied only Pacific Island children. De Hamel and Wilford 33 developed very simple prediction equations for FEV 1 and FVC for Maori and Samoan working males without presenting information on standard deviation or 95% confidence intervals.…”

Section: Discussionmentioning

confidence: 99%

Spirometric lung volumes in the adult Pacific Islander population: Comparison with predicted values in a European population

Milivojevic-Poleksic¹,

Wells

Moody

et al. 2001

Respirology

View full text Add to dashboard Cite

show abstract

Section: Discussionmentioning

confidence: 99%

Spirometric lung volumes in the adult Pacific Islander population: Comparison with predicted values in a European population

Milivojevic-Poleksic¹,

Wells

Moody

et al. 2001

Respirology

View full text Add to dashboard Cite

show abstract

“…CALCULATIONS Prediction was made of the normal value for each variable as follows. For FEV1/VC (wet spirometer) the value 85 8 (SD 6 78) % was used for all subjects (Liang et al, 1975). Normal values for MMEF, V75, V50, V25, MTT, CoV, and loS were derived from 107 healthy subjects aged between 6 and 15 years selected from a study by Macfie et al (1978).…”

Section: Methodsmentioning

confidence: 99%

Transit-time analysis of the forced expiratory spirogram during clinical remission in juvenile asthma.

Liang¹,

Macfie²,

Harris³

et al. 1979

Thorax

View full text Add to dashboard Cite

The mean transit time (MTT), coefficient of variation (CoV), and index of skewness (IoS) (Fish et al, 1974). The forced vital capacity (FVC) can be considered as a large number of discrete volume increments (or even gas molecules) each of which is distinguished by a transit time measured from the start ofthe expiration to a given point on the record. The distribution of transit times can be described mathematically by the mean transit-time (MTT), the coefficient of variation (CoV) of transittimes, and the index of skewness (IoS) of the transittime distribution. These are derived from the first three moments of the flow/time curve (see appendix); higher moments can be derived but add little to the description.We have compared MTT, CoV, and LoS with conventional spirographic indices in 51 asthmatic children who considered themselves free from symptoms at the time of study and in whom wheezes were not audible on auscultation. Nineteen of these children showed no abnormality of the spirogram, however analysed. In the remaining 32, abnormalities of MTT were both more frequent and of greater magnitude than those of any other index. Methods SUBJECTSThirty-five children (17 boys, 18 girls) aged between 7 and 14 years were selected from those attending a summer camp run by the Auckland Asthma Society. Sixteen children (9 boys, 7 girls) aged between 7 and 13 years were patients under the care of one of us (AL). All were Europeans and had had typical asthma since early childhood; two were not receiving any treatment at the time of study and the rest were having regular treatment with one or more of salbutamol (aerosol or tablets), disodium cromoglycate by Spinhaler, and beclomethasone aerosol. None was receiving oral steroids. Admission to the study required absence of symptoms and of clinical evidence of upper respiratory infection or wheeze. All were studied in the morning, and none had taken any medication since the previous day. PROCEDUREEach patient, after instruction and practice, made forced expirations from total lung capacity (TLC) to residual volume, in the standing position, into a calibrated Med Sci model 565 rolling-seal spirometer 194 on 12 May 2018 by guest. Protected by copyright.

show abstract

Correlation between standing height, sitting height, and arm span as an index of pulmonary function in 6–10‐year‐old children

Torres

Martinez

Manço

2003

Pediatric Pulmonology

View full text Add to dashboard Cite

The present study evaluates the relationships of pulmonary volumes and flows and the anthropometric variables of standing height, sitting height, and arm span in 100 6-10-year-old children. To be included in the study, all children were required to be healthy and above the 3rd percentile of the curve of Tanner et al. (Arch Dis Child 1966;41:454-471; Arch Dis Child 1966;41:613-635) for height and weight. Standing height, sitting height, and arm span were measured according to standard protocol. The pulmonary function measurements were: tidal volume, minute respiratory volume, respiratory rate, expiratory reserve volume, inspiratory capacity, vital capacity, residual volume (RV), functional residual capacity, total lung capacity (TLC), forced vital capacity (FVC), forced expiratory volume in 1 sec of FVC (FEV(1)), forced expiratory flow measured between 25-75% of FVC, and FEV(1)/FVC and RV/TLC ratios. Simple linear regression best expressed the correlation between pulmonary function and the anthropometric variables. Significant correlations between anthropometric and pulmonary function measurements were observed, with FVC and FEV(1) showing the highest and RV the lowest r(2) values. There was a significant positive correlation between standing height and arm span according to linear regression and Bland-Altman comparison (Bland and Altman, Lancet 1968;8:307-310). Our results suggest that when an accurate determination of standing height cannot be obtained, arm span could be used interchangeably, using the same regression equation. However, for patients with limb deformities, regression equations of pulmonary function measurements in relation to sitting height may be a better choice for estimating pulmonary function.

show abstract

Spirometric Standards from 387 Healthy New Zealand Children

Cited by 5 publications

References 3 publications

Spirometric lung volumes in the adult Pacific Islander population: Comparison with predicted values in a European population

Spirometric lung volumes in the adult Pacific Islander population: Comparison with predicted values in a European population

Transit-time analysis of the forced expiratory spirogram during clinical remission in juvenile asthma.

Correlation between standing height, sitting height, and arm span as an index of pulmonary function in 6–10‐year‐old children

Contact Info

Product

Resources

About