Table 2 Baseline characteristics of respondents and non-respondents stratified by sex; Tehran Lipid and Glucose study (TLGS) (1999–2018)
Women | Men | |||||
|---|---|---|---|---|---|---|
Variables | Respondent n = 1952 | Non-respondent n = 618 | P value | Respondent n = 1833 | Non-respondent n = 683 | P value |
Age (years) | 39.7 (11.1) | 38.9 (11.6) | 0.173 | 45.8 (12.3) | 46.5 (13.4) | 0.248 |
BMI (kg/m2) | 27.6 (4.5) | 28.2 (5.1) | 0.022 | 26.1 (3.7) | 25.9 (4.1) | 0.250 |
Waist circumference (cm) | 87.3 (11.6) | 88.4 (12.3) | 0.066 | 89.9 (10.3) | 89.1 (10.9) | 0.092 |
SBP (mmHg) | 115.1 (16.9) | 115.3 (18.8) | 0.851 | 119.1 (17.1) | 119.9 (18.8) | 0.354 |
DBP (mmHg) | 76.5 (10.3) | 75.8 (11.2) | 0.183 | 77.7 (10.8) | 78.1 (11.4) | 0.575 |
TG/HDL-C | 3.6 (2.9) | 3.9 (4.2) | 0.085 | 5.4 (4.7) | 5.2 (4.2) | 0.411 |
FPG (mmol/L) | 4.9 (0.5) | 4.9 (0.5) | 0.940 | 5.1 (0.5) | 5.1 (0.5) | 0.975 |
Education | ||||||
< 6 years of schooling | 549 (28.1) | 178 (28.8) | 0.878 | 452 (24.6) | 185 (27.1) | 0.457 |
6–12 years of schooling | 1225 (62.8) | 381 (61.7) | 1044 (57.0) | 375 (54.9) | ||
> 12 years of schooling | 178 (9.1) | 59 (9.5) | 337 (18.4) | 123 (18.0) | ||
Family history of diabetes | 538 (27.6) | 170 (27.5) | 0.975 | 457 (24.9) | 164 (24.0) | 0.634 |
Prevalent CVD | 50 (2.6) | 17 (2.8) | 0.773 | 90 (4.9) | 52 (7.6) | 0.011 |
Smoking status | ||||||
Never | 1854 (95.0) | 577 (93.5) | 0.361 | 864 (47.1) | 374 (54.8) | < 0.001 |
Past | 30 (1.5) | 14 (2.2) | 240 (13.1) | 101 (14.7) | ||
Current | 68 (3.5) | 27 (4.3) | 729 (39.8) | 208 (30.5) | ||
Physical activity level | ||||||
Low physically active | 1421 (72.8) | 472 (76.4) | 0.090 | 1338 (72.9) | 464 (67.9) | 0.666 |
Lipid-lowering medication | 30 (1.5) | 13 (2.1) | 0.368 | 20 (1.1) | 8 (1.2) | 0.833 |
Antihypertensive medication | 85 (4.4) | 31 (5.0) | 0.505 | 64 (3.5) | 35 (5.1) | 0.061 |