This study aimed to clarify the role of blood lead level (Pb-B) as one of the cardiovascular risk factors. To evaluate the cardiovascular risk the second derivative finger photoplethysmogram (SDPTG) was used. The subjects comprised of 420 male bus drivers in Thailand. The subjects' age ranged from 20 to 60 yr. Mean age (± standard deviation) were 41.6 (± 7.7) yr. Mean working years was 8.8 (± 6.8) yr. Pb-B ranged from 2.5 to 16.2 µg/dl with the mean Pb-B of 6.3 (± 2.2) µg/dl. The mean of aging index of SDPTG (SDPTG-AI) were -0.50 (± 0.30). The SDPTG-AI increases with age, Pb-B, smoking and alcohol consumption. There was significant correlation between Pb-B and SDPTG-AI after controlling for age, body mass index and lifestyle factors. These results suggest that Pb-B is possibly an independent cardiovascular risk factor for bus drivers exposed to lower level of lead.
This study aims to evaluate blood lead level (PbB) and blood pressure of bus drivers in Bangkok, Thailand, after the phasing out of lead in gasoline. The subjects comprised of 439 male bus drivers whose age ranged between 23 and 59 yr with the mean age of 42 ± 8 yr. Average working experience was 10 ± 7 yr. The mean of the systolic and diastolic blood pressure were 131 ± 17 and 81 ± 11 mmHg, respectively. PbB ranged from 2.5 to 16.2 µ µ µ µ µg/dl with the mean PbB of 6.3 µ µ µ µ µg/dl. Prevalence rate of systolic and diastolic hypertension among bus drivers were 23.0% and 18.2%, respectively. There were significant correlations between PbB and blood pressure both in systolic and diastolic blood pressure after controlling for age, BMI, alcohol consumption, smoking and physical exercise. However, the data on psycho-social factors which may affect on blood pressure of bus drivers were not available. Therefore, further study is needed to clarify the relationship between blood pressure and psycho-social stress among bus drivers in Bangkok. These findings suggested lead exposure at low PbB is related to increases in blood pressure.
This study aimed to examine women's life history and work on a successful Thai national leader. Method: An autobiographical research was designed. The data was derived from the self-history and related people; in all, 29 key informants were divided into 5 groups for individual interviews, using a different set of questions during 2019-2020. The empirical data's trustworthiness was thoroughly checked for reliability, and content analysis was used combined with life story work. Result: She was born before World War II. When her family broke up, she ran away to study in a nursing school during the ensuing political turbulence. Good morals, love of learning, and Buddhist religious faith were integrated into perseverance for work. She was promoted from nurse sergeant to major female general. By overcoming the glass ceiling glass of feminist obstacles, she held several important positions in local, national, and international organizations, rendering benefits and justice for underprivileged groups and royal project missions. Her inspiration stemming from the Buddhist essence guided her in promoting love, faith, and hope in praxis to benefit Thai society: Nation, Religion, and Royalty. Her authentic, ethical leadership identity through a successful path is recommended for promising ways to promote society's ethical leadership development.
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