Table 1. Anthropometric data, the prevalence of metformin use, back pain status, BMI, and physical activity levels among people with type 2 diabetes.
| Variables | Using metformin # | Not using metformin # | |||
|---|---|---|---|---|---|
| Mean (SD) or% | n | Mean (SD) or% | n | P value | |
| Age (yr) | 60.0 (6.8) | 12,699 | 60.7 (6.6) | 9,190 | 0.09 |
| Duration of diabetes (yr) | 8.0 (8.6) | 12,312 | 6.4 (8.8) | 8,873 | 0.12 |
| Chronic Back pain a | 23.3 | 2,810 | 24.5 | 2,145 | 0.04 |
| Female | 36.2 | 4,595 | 36.7 | 3,369 | 0.41 |
| Male | 63.8 | 8,104 | 63.3 | 5,821 | 0.42 |
| Smokersd | 10.9 | 1,363 | 10.6 | 968 | 0.56 |
| Body mass index (kg/m2)b | 32.1 (5.8) | 12,576 | 31.2 (5.6) | 9,104 | 0.90 |
| Body mass index categories | |||||
| Normal weight | 7.7 | 977 | 11.0 | 1,006 | 0.01 |
| Overweight | 32.5 | 4,084 | 35.8 | 3,258 | 0.01 |
| Obese | 59.8 | 7,515 | 53.2 | 4,840 | 0.01 |
| Physical activity level c | |||||
| Low | 43.7 | 5,544 | 41.3 | 3,791 | 0.01 |
| Moderate | 35.2 | 4,474 | 35.7 | 3,284 | 0.44 |
| High | 21.1 | 2,681 | 23.0 | 2,115 | 0.01 |
| Pain medication | 5.0 | 628 | 5.2 | 485 | 0.27 |
SD: standard deviation; n: number of participants
a Prevalence (%)
# Percentage within the group
b Body mass index classified according to WHO
c classification according to short IPAQ scoring.
d Smoker, participants who reported being frequent or occasional smokers