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Biomedical subjects

W S Lin

Publications and source records attributed to W S Lin.

78 records · Page 5Linked to original sources
PubMedDate not supplied

Physical growth of Chinese school children 7-18 years, in 1985.

Physical development in Chinese school children was analysed based on a national survey in 1985. Close to half a million children and adolescents, aged 7-18, from Han ethnic group and 27 minority ethnic groups were assessed for height, weight, sitting-height, chest circumference, biacromial and biiliac diameters. Growth in Han children was greater than that in minority ethnic group children. The growth differences among minority ethnic groups were large. Growth in urban children was greater than that in rural children except in a few age groups of girls. A significant difference in children's growth was found between northern and southern divisions of China, it being greater in the north. The growth curves of physical characteristics demonstrated systematic regularity. Finally, the results of this study were compared with research reports from other world literature.

Adolescent↗
PubMedDate not supplied

Secular change in the growth and development of Han children in China.

This paper reports the secular change in physical growth and development of Han children in 12 Chinese metropolitan cities including Beijing, Tianjing, Shanghai, Jinan, Harbin, Shenyang, Changchun, Nanjing, Hangzhou, Wuhan, Guangzhou, and Chengdu. Based on a recent national survey of 14,688 healthy schoolchildren, aged 7-18 years, and together using the historical records of healthy schoolchildren as secondary data source, this study found a secular change in the growth and development of Chinese children and youth. In every decade between the 1950s and 1985 the average height increased by 2.66 cm (range 1.78-3.77) for boys and 2.40 cm (range 1.72-3.76) for girls, and the average weight increased by 1.64 kg (range 1.28-2.63) for boys and 1.14 kg (range 0.63-2.01) for girls in the 12 cities. In the last decade from the 1970s to 1985, the height and weight increments were highest in Beijing, Jinan, Shenyang and Shanghai. In addition, the increments were higher during the peak growth years than during other periods of growth. In the 30 years studied, the ages of maximum growth velocity were advanced, and they were 1 or 2 years earlier in 1985 than in the 1950s in most cities. When compared with the data from the 1930s the results indicate that, during the last half-century, height increased by 1.12-2.66 cm per decade for boys and 1.42-2.67 cm/decade for girls, while weight increased by 0.56-1.27 for boys and 0.65-1.18 kg for girls in Beijing, Shanghai, Nanjing, Hanzhou and Guangzhou.

Adolescent↗
PubMedDate not supplied

Developmental perspective of pulse rate, blood pressures and vital capacity in Chinese children.

Physiological development in Chinese children was analysed based on a national survey sample. Close to half a million children and adolescents, aged 7-18 years, from Han and 27 minority nationalities were assessed for pulse rate, systolic and diastolic blood pressure, and forced vital capacity in these 12 age groups. The factors of age, sex, race, and region (urban/rural, north/south) were analysed. P95 hypertension screening standard was established for each age group. These results were compared with research reports from world literature.

Adolescent↗
PubMedDate not supplied

The menarcheal age of Chinese girls.

The menarcheal age of Chinese girls was analysed based on a national survey in 1985. A total of 162,902 girls, aged 7-22 years, of Han nationality and 34,232 girls, aged 7-18, of 27 minority nationalities were sampled. Data were further subdivided into urban and rural areas. It was found that the curves of menstruating percentage in each of the subgroup were in long sigmoid shapes. The menstruating rate (MR) of Han girls was higher than that of the minority girls in almost every age group. The median menarcheal age (MMA) of Han girls was significantly lower than that of the minority girls. In Han nationality the urban girls showed higher MR and lower MMA than the rural girls. The influence of hereditary, cultural and economical factors on menarcheal age in Chinese girls is discussed. The data of this study were also compared with research reports from other world literature.

Adolescent↗