A New Predictive Index for Osteoporosis in Men under 70 Years of Age: An Index to Identify Male Candidates for Osteoporosis Screening by Bone Mineral Density

Table 2

Characteristics of subjects according to bone density status.

	Normal and osteopenia*; (𝑛=327)	Osteoporosis*; (𝑛=32)	𝑃 value
Age (years)	54.0±7.9	57.2±7.6	0.028
Weight (kg)	76.7±9.6	67.2±7.5	0.002
Height (cm)	168.9±5.8	168.3±4.2	0.565
BMI (kg/m^2)	25.5±2.9	23.8±3.0	0.002
Current smoker	120 (36.7)	19 (59.4)	0.012
Heavy alcohol consumption^†	189 (57.8)	17 (53.1)	0.610
Exercise^‡	233 (71.3)	23 (71.9)	0.941
OST^§	3.4±2.6	1.7±2.0	0.001

Data are mean ± standard deviation or number (percent).
𝑃 values: by independent 𝑡-test for continuous variables and by chi-square test for categorical variables.
BMI: body mass index.
∗Defined according to WHO BMD criteria: with the lowest 𝑇-score either of lumbar spine or femur equal to or less −2.5 being osteoporosis and a 𝑇-score between −2.5 and −1.0 being osteopenia.
†Consuming two or more bottles of any kind of alcohol per week.
‡Exercise of any kind for any duration on a regular basis.
§Osteoporosis self-assessment tool [weight (kg) − age (years)]  × 0.2, decimal dropped.