As life expectancy increases, the number of elderly patients with osteoporosis rises as well. Many factors affect the development of osteoporosis, and good physical fitness may contribute to having better social adaptability in older people. So it is very important to pay attention to osteoporosis and ensure physical fitness in this group.
To explore the factors associated with osteoporosis, and analyze physical fitness in elderly men, providing a theoretical basis for preventing osteoporosis, improving physical fitness and developing health management programs for this group.
This study was conducted from January 2018 to December 2020. A total of 250 elderly men who underwent bone mineral density (BMD) examination were selected from Health Management Center, Inner Mongolia People's Hospital, and divided into normal BMD, osteopenia and osteoporosis groups by BMD examination results. Data were collected, including baseline information, laboratory results, physical fitness test results〔 including muscular strength (number of elbow bending within 30 seconds, 30-second sit-to-stand test results) , flexibility (shoulder and arm stretches, sitting flexion test) , balance (stand on one foot with eyes closed) , aerobic capacity (2-minute step test) , agility/mobility (timed up go test with a minimal space of 2.5 meters) 〕.
Of the 250 subjects, 76 (30.4%) had normal BMD, 123 (49.2%) had osteopenia, and 51 (20.4%) had osteoporosis. Multivariate Logistic regression analysis demonstrated that abdomen circumference〔OR=0.710, 95%CI (0.566, 0.891) 〕, body mass index 〔OR=0.685, 95%CI (0.474, 0.990) 〕, high-density lipoprotein cholesterol〔OR=74.182, 95%CI (3.738, 1 472.125) 〕, 25 (OH) D3〔OR=0.745, 95%CI (0.619, 0.897) 〕, and estradiol〔OR=0.784, 95%CI (0.665, 0.924) 〕were associated with osteoporosis in elderly men (P<0.05) . All the subjects successfully completed physical fitness tests, without adverse events. The number of repetitions of sit-to-stands within 30 seconds, results of shoulder and arm stretches, sitting flexion test, and 2-minute step test, duration for stand on one foot with eyes closed, as well as time used for timed up go test with a minimal space of 2.5 meters differed significantly across normal BMD, osteopenia and osteoporosis groups (P<0.05) . The number of elbow bending within 30 seconds showed no significant differences across the three groups (P>0.05) .
In elderly men, abdomen circumference, body mass index, high-density lipoprotein cholesterol, 25 (OH) D3, and estradiol may independently associated with osteoporosis. Physical fitness indices varied significantly by BMD, especially flexibility, balance, aerobic capacity and agility/mobility.
China is seeing increasingly osteoporosis prevalence as ageing marches on. However, the specific etiology and pathogenesis of osteoporosis are still unclear, and there are still limitations in its prevention and treatment.
To investigate osteoporosis prevalence and associated factors in older Chinese patients with stable chronic conditions.
Three hundred and two elderly inpatients with stable chronic conditions who underwent a reexamination in Department of Geriatrics, Yunnan First People's Hospital from November 2020 to September 2021 were recruited. Dual-energy X-ray absorptiometry (DXA) was used to measure lumbar spine and hip bone mineral density (BMD) . T value ≤-2.5 was defined as osteoporosis. Demographic data were collected. Comprehensive geriatric assessment was conducted via a self-developed online platform named Comprehensive Geriatric Assessment. Fasting venous blood samples were collected and measured for serum biomarkers.
Among the patients, 126 (41.7%) were found with osteoporosis, and other 176 (58.3%) without. Binary Logistic regression analysis indicated that insomnia〔OR=2.180, 95%CI (1.080, 4.443) 〕, multiple chronic conditions〔OR=1.223, 95%CI (1.101, 1.358) 〕, elevated homocysteine〔OR=1.043, 95%CI (1.000, 1.088) 〕 were associated with increased risk of osteoporosis (P<0.05) , while elevated serum uric acid level〔OR=0.996, 95%CI (0.993, 0.999) 〕 was associated with decreased risk of osteoporosis (P<0.05) .
The prevalence of osteoporosis in these older patients with stable chronic conditions was 41.7%. The probability of osteoporosis may be decreased with elevated serum uric acid level, and increased with elevated homocysteine, insomnia and multiple chronic conditions.
Postmenopausal osteoporosis (PMOP) has an increasing incidence as aging advances. As the traditional Chinese medicine (TCM) constitution theory is of great significance in guiding PMOP prevention and treatment, studying the associated factors of yang-deficiency constitution, a common imbalanced constitution in PMOP patients, will contribute to the development of personalized treatment of PMOP.
To perform an analysis of the distribution of TCM constitution and associated factors of yang-deficiency constitution in PMOP patients in the community.
From November 2017 to July 2018, an interviewer-administered questionnaire survey for screening PMOP was conducted with a random sample of residents (45-80 years old) from 10 communities of Beijing's Chaoyang and Fengtai Districts. The general data collected include age, age at menopause, retirement status, types of job (mental, physical, or both) , educational level, monthly household income, height, weight, body mass index (BMI) , grip strength-weight index, history of fractures, history of falls, family history of osteoporosis, nighttime sleep duration, habits of eating leftovers, diet type (meat-based, plant-based, or meat-plant based) . TCM constitution was analyzed using the TCM Constitution Questionnaire. The associated factors of yang-deficiency constitution in PMOP cases were analyzed by multivariate Logistic regression.
Four hundred and thirty-two cases were found with PMOP, four of them were excluded due to missing data of TCM constitution, and the other 428 cases were finally included. The residents with gentleness constitution numbered the most (n=175) . Among residents with biased constitution, those with yang-deficiency constitution numbered the most (n=107) . Through multivariate Logistic regression analysis, it was found that BMI<18.5 kg/m2, frequently eating leftovers, and meat-based diet were associated with increased risk of PMOP in yang-deficiency residents (P<0.05) .
This cross-sectional survey indicates that yang-deficiency constitution may be highly prevalent in PMOP residents, and was associated with BMI<18.5 kg/m2 often eating leftovers, and meat-based diet.
People with diabetes mellitus are at increased risk of developing osteoporosis (OP) , especially those with postmenopausal type 2 diabetes mellitus (T2DM) . Chronic inflammation plays an important role in the development of OP.
To explore the predictive value of neutrophil-to-lymphocyte ratio (NLR) and monocyte-to-high-density lipoprotein cholesterol ratio (MHR) for OP in postmenopausal patients with T2DM.
Two hundred and sixteen postmenopausal T2DM patients who were hospitalized in the Department of Endocrinology and Metabolism, the First Affiliated Hospital of Zhengzhou University from January 2018 to January 2020 were chosen. Clinical data were obtained, including blood routine and biochemical parameters (such as blood lipids and so on) in fasting venous blood, calculated NLR and MHR, and bone mineral density (BMD) of lumbar spine L1-4, left femoral neck and left hip measured by dual-energy X-ray absorptiometry (DXA) . According to the BMD, the patients were divided into normal bone mass group (n=51) , osteopenia group (n=78) and OP group (n=87) . In addition, they were divided into 4 groups according to NLR quartiles (A1 to A4 group) and MHR quartiles (B1 to B4 group) , with 54 cases in each. Spearman correlation was used to analyze the association of NLR and MHR with BMD at lumbar spine L1-4, left femoral neck and left hip. Multivariate Logistic regression analysis was applied to explore the influencing factors of OP. Receiver operating curve (ROC) analysis was performed to evaluate the value of NLR, MHR and their combination in predicting OP.
NLR and MHR were increased in the osteopenia group than the normal bone mass group (P<0.05) . Compared with the normal bone mass group and the osteopenia group, NLR and MHR in the OP group were statistically significant increased (P<0.05) . Compared with A1 group, A3 group had decreased BMD at lumbar spine L1-4, left femoral neck and left hip, so did A4 group (P<0.05) . A4 group had decreased BMD at lumbar spine L1-4, and left hip than A2 group (P<0.05) . B1 group had higher BMD at lumbar spine L1-4, left femoral neck and left hip than did B2, B3, and B4 groups (P<0.05) . B4 group had decreased BMD at lumbar spine L1-4, left femoral neck and left hip than did B2 group (P<0.05) . B4 group also had decreased BMD at lumbar spine L1-4 did B3 group (P<0.05) . Spearman correlation analysis showed that both NLR and MHR were negatively correlated with BMD at lumbar spine L1-4, left femoral neck and left hip (P<0.001) . Multivariate Logistic regression analysis showed that long menopausal duration〔OR=1.092, 95%CI (1.005, 1.186) 〕, increased NLR〔OR=2.341, 95%CI (1.453, 3.770) 〕and increased MHR〔OR=329.250, 95%CI (21.421, 5 060.810) 〕were independently associated with elevated risk of OP, while high BMI〔OR=0.806, 95%CI (0.718, 0.903) 〕was associated with decreased risk of OP (P<0.05) . ROC analysis demonstrated that in predicting OP, the area under the curve (AUC) of NLR was 0.722, with 65.5% sensitivity and 72.1% specificity, and that of MHR was 0.709 with 52.9% sensitivity and 79.8% specificity, and that of NLR with MHR was 0.787, with 81.6% sensitivity and 67.4% specificity. The AUC of NLR with MHR was greater than that of NLR or MHR alone (Z=2.418, P<0.05; Z=2.893, P<0.05) .
Either NLR or MHR could be used as a predictor of OP in postmenopausal T2DM patients, and the predictive efficiency and sensitivity of the combination of them would be higher.
