| Total sample | Girls | Boys | |||
---|---|---|---|---|---|---|
 | Elementary education (n = 38) | Secondary education (n = 150) | Elementary education (n = 13) | Secondary education (n = 72) | Elementary education (n = 25) | Secondary education (n = 78) |
Physical health | ||||||
 Fitness (W/kg) | 2.7 (0.7) | 2.8 (0.6) | 2.0 (0.5)** | 2.5 (0.5)** | 2.9 (0.5) | 3.0 (0.5) |
 Physical activity (counts/min) | 559 (208) | 555 (186) | 492 (82) | 492 (122) | 581 (236) | 615 (216) |
 Body mass index (kg/m2) | 24.6 (4.5) | 24.4 (3.8) | 24.7 (4.8) | 23.6 (3.3) | 24.6 (4.2) | 25.1 (4.0) |
 Waist circumference (cm) | 79.4 (10.8) | 78.4 (11.0) | 76.8 (11.1) | 72.1 (7.2) | 80.8 (9.3) | 84.2 (10.8) |
 Skinfold thickness (cm) | 114.6 (58.1) | 120.0 (50.3) | 150.1 (70.6) | 130.6 (48.3) | 94.1 (37.9) | 110.2 (50.4) |
 Somatic complaints | 15.3 (7.4)** | 13.1 (4.3)** | 16.5 (5.6)* | 13.5 (4.4)* | 14.7 (4.9) | 12.8 (4.1) |
 Systolic blood pressure (mm/Hg) | 121 (11.9) | 117.3 (11.4) | 114.4 (10.3) | 111.1 (8.6) | 124.7 (11.2) | 122.9 (10.8) |
 Diastolic blood pressure (mm/Hg) | 74.0 (7.1) | 72.5 (6.0) | 76.6 (8.9)* | 71.5 (6.6)* | 72.7 (5.7) | 73.3 (5.7) |
Health - behaviors | ||||||
 Smoking | 5 % (2) | 3 % (4) | 8 % (1) | 1 % (1) | 4 % (1) | 4 % (3) |
 Alcohol drinking | 82 % (31) | 86 % (127) | 92 % (12) | 86 % (62) | 76 % (19) | 87 % (65) |
Moderate/vigorous physical activity | ||||||
 Never/rarely | 19 % (6) | 8 % (11) | 30 % (3) | 9 % (6) | 14 % (3) | 7 % (5) |
 1-3 times a week | 22 % (7) | 33 % (47) | 30 % (3) | 39 % (27) | 18 % (4) | 28 % (20) |
 ≥4 times a week | 59 % (19) | 59 % (83) | 40 % (4) | 52 % (36) | 68 % (15) | 65 % (47) |
Physical activity with a sports club | ||||||
 Never/rarely | 40 % (13) | 31 % (44) | 70 % (7)* | 35 % (24)* | 27 % (6) | 28 % (20) |
 1-3 times a week | 13 % (4) | 23 % (33) | 20 % (2)* | 26 % (18)* | 9 % (2) | 21 % (15) |
 ≥4 times a week | 47 % (15) | 45 % (64) | 10 % (1)* | 39 % (27)* | 64 % (14) | 51 % (37) |
Watch television >2Â h on weeknights | 47Â % (18)* | 27Â % (40)* | 39Â % (5) | 26Â % (19) | 52Â % (13)* | 27Â % (21)* |
Seldom get enough sleep | 27Â % (9)** | 6Â % (9)** | 46Â % (6)** | 5Â % (4)** | 12Â % (3) | 6Â % (5) |
Sleep ≥7 h each night | 32 % (12)** | 55 % (83)** | 15 % (2)** | 63 % (45)** | 40 % (10) | 49 % (38) |
Psychological factors | ||||||
 Self-esteem | 21.5 (6.4) | 23.4 (5.4) | 21.5 (6.1) | 23.9 (5.0) | 21.6 (6.6) | 22.9 (5.8) |
 Depression | 16.8 (7.4) | 14.8 (4.9) | 18.2 (7.9) | 15.4 (5.5) | 16.0 (7.1) | 14.2 (4.3) |
 Life satisfaction | 22.8 (6.5)** | 26.3 (4.9)** | 23.5 (4.8)* | 27.1 (4.8)* | 21.3 (7.3)* | 25.5 (4.8)* |
 Social support | 17.3 (2.9) | 18.1 (2.3) | 36.4 (4.4) | 36.3 (3.6) | 31.8 (5.7) | 33.7 (4.6) |
Demographics | ||||||
 Child-rearing responsibilities | 26 % (10) | 14 % (21) | 46 % (6)** | 13 % (9)** | 16 % (4) | 15 % (12) |
 Working full-time | 47 % (18)** | 21 % (32)** | 23 % (3) | 17 % (12) | 60 % (15)** | 26 % (20)** |
 Unemployed | 13 % (5)** | 1 % (2)** | 15 % (2)* | 1 % (1)* | 12 % (3)* | 1 % (1)* |
 Working part-time | 18 % (7)** | 41 % (62)** | 23 % (3) | 47 % (34) | 16 % (4) | 36 % (28) |
 Studying | 42 % (16)** | 76 % (114)** | 46 % (6)** | 82 % (59)** | 40 % (10)** | 71 % (55)** |