Table 2.
Socio-Demographic and Clinical Characteristics of the Participants at Stage 1
| Total (N = 574) | Eligible (N = 181) | Not Eligible (N = 393) | P-value | |
|---|---|---|---|---|
| Age, median (IQR, range) | 53 (42–67) [18–89] | 50 (39–66) [19–89] | 54 (43–67)a [18–87] | 0.15 |
| Male, N (%) | 246 (42.9) | 69 (38.1) | 177 (45.0)a | 0.13 |
| Marital status, N (%) | 0.36 | |||
| Married/partnership | 353 (61.5) | 109 (60.2) | 244 (62.1) | |
| Single | 115 (20.0) | 39 (21.5) | 76 (19.3) | |
| Divorced/separated | 64 (11.1) | 16 (8.8) | 48 (12.2) | |
| Widowed | 42 (7.3) | 17 (9.4) | 25 (6.4) | |
| Education, grade, N (%) | 0.34 | |||
| ≤9th | 174 (30.3) | 59 (32.6) | 115 (29.3) | |
| 10th–12th | 232 (40.4) | 79 (43.6) | 153 (38.9) | |
| >12th | 168 (29.3) | 43 (23.8) | 125 (31.8) | |
| Occupational status, N (%) | 0.54 | |||
| Employee | 320 (55.7) | 100 (55.2) | 220 (56.0) | |
| Retired | 174 (30.3) | 49 (27.1) | 125 (31.8) | |
| Unemployed | 56 (9.8) | 23 (12.7) | 33 (8.4) | |
| Student | 18 (3.1) | 7 (3.9) | 11 (2.8) | |
| Other | 6 (1.0) | 2 (1.1) | 4 (1.0) | |
| BMI, kg/m2 median (IQR) | 26 (23–29) | 26 (23–30)a | 25 (23–29)b | 0.04* |
| BMI, classification N (%) | 0.09 | |||
| Underweight (<18.5) | 5 (0.9) | 4 (2.2) | 1 (0.3) | |
| Normal weight (18.5–24.9) | 242 (42.2) | 65 (35.9) | 177 (45.0) | |
| Overweight (25–29.9) | 210 (36.6) | 67 (37.0) | 143 (36.4) | |
| Obese (>30) | 114 (19.9) | 44 (24.3) | 70 (17.8) | |
| Insufficiently active, N (%) | 358 (62.4) | 112 (61.9) | 246 (62.6)c | 0.31 |
| Smoking status, N (%) | 0.06 | |||
| Former smoker | 163 (28.4) | 45 (24.9)a | 118 (30.0)b | |
| Current smoker | 125 (21.8) | 50 (27.6) | 75 (19.1) | |
| Never-smoked | 282 (49.1) | 86 (47.5) | 196 (49.9) | |
| ETS, N (%) | 121 (21.1) | 53 (29.3) | 68 (17.3)d | 0.44 |
| Asthma family history, N (%) | 247 (43.0) | 105 (58.0) | 142 (36.1) | 0.43 |
| Self-reported Asthma, N (%) | 95 (16.6) | 95 (16.6) | - | - |
| Self-reported inhaler use, N (%) | 72 (12.5) | 72 (12.5) | - | - |
Notes: *p < 0.05; a1 missing value; b2 missing values; c4 missing values; d5 missing values.
Abbreviations: BMI, body mass index; ETS, environmental tobacco smoke.