Table 1.
Characteristics of the studied population considering androgenic alopecia (n = 9,647).
| Variable | Subgroup | Total | Non-Androgenic alopecia (n = 2,299) | Androgenic alopecia (n = 7,348) | p-value* |
|---|---|---|---|---|---|
| Age (year) | 48.6 ± 9.5 | 46.2 ± 9.2 | 49.4 ± 9.6 | <0.001 | |
| Gender | Male | 4,241 (44.0) | 1,312 (57.1) | 2,929 (39.9) | <0.001 |
| Female | 5,406 (56) | 987 (42.9) | 4,419 (60.1) | ||
| Body mass index (kg/m2) | 25.7 ± 4.8 | 25.0 ± 4.8 | 25 ± 4.8 | <0.001 | |
| Energy intake (kcal/day) | 2,831 ± 937 | 2,997 ± 975 | 2,779 ± 918 | <0.001 | |
| Education | Illiterate | 4,406 (45.7) | 876 (38.1) | 3,530 (48.0) | <0.001 |
| Primary school | 4,445 (46.1) | 1,195 (52.0) | 3,250 (44.2) | ||
| Secondary school | 631 (6.5) | 175 (7.6) | 456 (6.2) | ||
| University | 165 (1.7) | 53 (2.3) | 112 (1.5) | ||
| Smoking (yes) | 1820 (18.9) | 661 (28.8) | 1,159 (15.8) | <0.001 | |
| Opium (yes) | 1957 (20.3) | 702 (30.5) | 1,255 (17.1) | <0.001 | |
| Alcohol consumption | 182 (1.9) | 70 (3.0) | 112 (1.5) | <0.001 | |
| Physical activity (metabolic equivalent of task) | 41.3 ± 11.1 | 42.4 ± 12.8 | 41.0 ± 10.6 | <0.001 | |
| Socioeconomic status (Assert index) | 0.00 ± 2.11 | 0.28 ± 2.28 | −0.09 ± 2.05 | <0.001 | |
| Having a Job (yes) | 4,878 (50.6) | 946 (41.1) | 3,932 (53.5) | <0.001 | |
| Diabetes (yes) | 1,181 (12.2) | 212 (9.2) | 969 (13.2) | <0.001 | |
| Hypertension (yes) | 1951 (20.2) | 343 (14.9) | 1,608 (21.9) | <0.001 | |
| Cardiovascular disease (yes) | 1,057 (11.0) | 184 (8.0) | 873 (11.9) | <0.001 | |
| Myocardial infarction (yes) | 169 (1.8) | 29 (1.3) | 140 (1.9) | 0.040 | |
| Stroke (yes) | 119 (1.2) | 22 (1.0) | 97 (1.3) | 0.169 | |
| Chronic kidney disease (yes) | 92 (1.0) | 27 (1.2) | 65 (0.9) | 0.212 | |
| Nonalcoholic fatty liver disease (yes) | 1,017 (10.5) | 195 (8.5) | 822 (11.2) | <0.001 | |
| Metabolic syndrome (yes) | 2,320 (24) | 360 (15.7) | 1960 (26.7) | <0.001 |
*The qualitative and quantitative variables were reported as frequency (percent) and mean (standard deviation or standard error). The Independent T-test and Chi-square test were used to compare the covariates between the two studied groups, the Androgenic Alopecia and the non-androgenic Alopecia groups (significant level: p-value < 0.05).