Table 1.
Characteristics of the participants in GLIDE
| Study | N | BMI, kg/m2 Mean (SD) | Females, % | Age, years Mean (SD) | Periodontitis, % | Ever Smoked, % | Education, % | |
|---|---|---|---|---|---|---|---|---|
| GLACIER | 16 948* 4041** | 26.4 (4.07)* 26.0 (4.03)** | 60.2* 63.1** | 54.3 (7.90)* 51.9 (9.02)** | 30.5** | 36.3** | Low**, % | 37.8 |
| Intermediate**, % | 41.4 | |||||||
| High**, % | 20.8 | |||||||
| TwinGene | 9350* 2849** | 26.0 (3.99)* 26.1 (3.97)** | 52.8* 53.6** | 65.2 (13.43)* 63.6 (8.04)** | 53.4** | 50.4** | <10 years of studies**, % | 43.0 |
| ≥10 to <13 years of studies**, % | 30.7 | |||||||
| ≥13 years of studies**, % | 26.3 | |||||||
| MDC | 4684 | 26.2 (4.04) | 63.7 | 59.3 (9.36) | 64.6 | 38.6 | ≤10 years of studies, % | 72.2 |
| >10 years of studies, % | 27.8 | |||||||
| ARIC | 4504 | 28.2 (5.10) | 52.0 | 62.7 (5.60) | 59.5 | 53.5 | Basic (0–11 years), % | 8.9 |
| Intermediate (12–15 years), % | 45.8 | |||||||
| Advanced (16+ years), % | 45.3 | |||||||
| COHRA | 772 | 29.7 (7.73) | 62.7 | 33.9 (9.00) | 20.8 | 69.5 | >high school, % | 15.0 |
| = high school diploma,% | 45.6 | |||||||
| Some college or associate degree, % | 23.5 | |||||||
| College or advanced degree, % | 15.9 | |||||||
| SHIP | 3264 | 27.0 (4.47) | 51.1 | 45.8 (14.87) | 55.5 | 64.5 | <10 years, % | 31.2 |
| = 10 years, % | 50.3 | |||||||
| >10 years, % | 18.5 | |||||||
| SHIP-Trend | 819 | 27.2 (4.42) | 55.1 | 49.2 (13.2) | 51.8 | 57.1 | <10 years, % | 9.9 |
| = 10 years, % | 57.4 | |||||||
| >10 years, % | 32.7 | |||||||
| WGHS | 22 888 | 25.9 (4.96) | 100 | 54.7 (7.11) | 24.7 | 49.1 | <than Bachelor's, | 56.0 |
| ≥than Bachelor's | 44.0 | |||||||
| NHS_T2D_Controls | 1706 | 26.4 (5.20) | 100 | 65.5 (6.75) | 13.5 | 49.5 | At least university degree, % | 32.5 |
| NHS_CHD_Controls | 784 | 25.5 (4.71) | 100 | 68.1 (6.47) | 15.7 | 64.5 | At least university degree, % | 29.0 |
| NHS_Cancer_Controls | 1018 | 26.1 (4.93) | 100 | 66.8 (6.41) | 15.1 | 52.0 | At least university degree, % | 29.2 |
| HPFS_T2D_Controls | 1268 | 25.0 (2.74) | 0 | 55.4 (8.37) | 25.6 | 53.2 | N/A† | |
| HPFS_CHD_Controls | 749 | 25.1 (2.99) | 0 | 56.5 (8.75) | 28.7 | 57.7 | N/A† | |
*Individuals with data on genotypes and BMI; **Individuals with data on genotypes and periodontitis †All participants are health professionals.