Table 1.
Characteristics of the populations studied
| Rural | Urban | Adjusted P value | |
|---|---|---|---|
| Community characteristics | |||
| Population | 26,563 | 7,000,000 | |
| Persons per square kilometer | 668 | 13,150 | |
| Average disposable income | $800 | $5600 | |
| Birth rate per 1000 | 11.7 | 8.7 | |
| Population growth rate per 1000 | 5.8 | 4.5 | |
| Subject characteristics | |||
| Total number subjects | 20 | 20 | |
| Number (%) female | 5 (25%) | 13 (65%) | |
| Mean (std) age range | 50.6 (11.7) | 58.9 (10.99) | |
| Significant differences in metadata | |||
| Insulin (μU/mL) | 4.31 | 9.84 | 0.0003 |
| Waist circumference (cm) | 73.78 | 85.03 | 0.0104 |
| BMI (kg/m2) | 21.09 | 24.45 | 0.0104 |
| HbA1c (%) | 5.65 | 6.63 | 0.0147 |
The mean of the community characteristics and metadata is shown. Only metadata variables significant after correction for multiple hypothesis testing are shown. See Additional file 6: Table S2H for all metadata variables tested