Table 1 Characteristics of the three GPS datasets arising from application of the three inclusion criteria
Full sample n (% of full sample) | Criterion 1 n (% of criterion 1 sample) | p-valuea | Criterion 1 (% of full sample) | Criterion 2 n (% of criterion 2 sample) | p-valuea | Criterion 2 (% of full sample) | Criterion 3 n (% of criterion 3 sample) | p-valuea | Criterion 3 (% of full sample) | |
|---|---|---|---|---|---|---|---|---|---|---|
Total | 253 (100.0) | 236 (100.0) | 93.3 | 85 (100.0) | 33.6 | 48 (100.0) | 19.0 | |||
School (SES) | 0.345 | 0.008 | 0.000 | |||||||
1 (low) | 30 (11.9) | 25 (10.6) | 83.3 | 3 (3.5) | 10.0 | 3 (6.3) | 10.0 | |||
2 (low) | 23 (9.1) | 22 (9.3) | 95.7 | 4 (4.7) | 17.4 | 0 (0) | 0.0 | |||
3 (low) | 26 (10.3) | 23 (9.7) | 88.5 | 7 (8.2) | 26.9 | 3 (6.3) | 11.5 | |||
4 (low) | 26 (10.3) | 25 (10.6) | 96.2 | 6 (7.1) | 23.1 | 1 (2.1) | 3.8 | |||
5 (medium) | 30 (11.9) | 29 (12.3) | 96.7 | 12 (14.1) | 40.0 | 8 (16.7) | 26.7 | |||
6 (medium) | 25 (9.7) | 23 (9.7) | 92.0 | 13 (15.3) | 52.0 | 4 (8.3) | 16.0 | |||
7 (high) | 28 (11.1) | 28 (11.9) | 100.0 | 11 (12.9) | 39.3 | 5 (10.4) | 17.9 | |||
8 (high) | 13 (5.1) | 12 (5.1) | 92.3 | 5 (5.9) | 38.5 | 4 (8.3) | 30.8 | |||
9 (high) | 52 (20.6) | 49 (20.8) | 94.2 | 24 (28.2) | 46.2 | 20 (41.7) | 38.5 | |||
Sex | 0.843 | 0.991 | 0.562 | |||||||
Female | 143 (56.5) | 133 (56.4) | 93.0 | 48 (56.5) | 33.6 | 27 (56.3) | 18.9 | |||
Male | 110 (43.5) | 103 (43.6) | 93.6 | 37 (43.5) | 33.6 | 21 (43.8) | 19.1 | |||
Age (years) | 0.799 | 0.068 | 0.034 | |||||||
8 | 4 (1.6) | 4 (1.7) | 100.0 | 1 (1.2) | 25.0 | 1 (2.1) | 25.0 | |||
9 | 69 (27.3) | 64 (27.1) | 92.7 | 25 (29.4) | 36.2 | 17 (35.4) | 24.6 | |||
10 | 153 (60.5) | 142 (60.2) | 92.8 | 45 (52.9) | 29.4 | 23 (47.9) | 15.0 | |||
11 | 21 (8.3) | 20 (8.5) | 95.2 | 12 (14.1) | 57.1 | 5 (10.4) | 23.8 | |||
12 | 4 (1.6) | 4 (1.7) | 100.0 | 2 (2.4) | 50.0 | 2 (4.2) | 50.0 | |||
13 | 2 (0.8) | 2 (0.8) | 100.0 | 0 (0) | 0.0 | 0 (0) | 0.0 | |||
Ethnicity | 0.006 | 0.008 | 0.006 | |||||||
European | 57 (22.5) | 54 (22.9) | 94.7 | 26 (30.6) | 45.6 | 20 (41.7) | 35.1 | |||
Indian/Asian/other | 67 (26.5) | 65 (27.5) | 97.0 | 30 (35.3) | 44.8 | 16 (33.3) | 23.9 | |||
Māori | 31 (12.3) | 28 (11.9) | 90.3 | 4 (4.7) | 12.9 | 0 (0) | 0.0 | |||
Not stated | 15 (5.9) | 13 (5.5) | 86.7 | 5 (5.9) | 33.3 | 3 (6.3) | 20.0 | |||
Other Pacific Islander | 45 (17.8) | 42 (17.8) | 93.3 | 12 (14.1) | 26.7 | 4 (8.3) | 8.9 | |||
Samoan | 38 (15.0) | 34 (14.4) | 89.5 | 8 (9.4) | 21.1 | 5 (10.4) | 13.2 | |||
Number of cars | 0.829 | 0.677 | 0.873 | |||||||
0 | 24 (9.5) | 23 (9.7) | 95.8 | 5 (5.9) | 20.8 | 2 (4.2) | 8.3 | |||
1 | 106 (41.9) | 100 (42.4) | 94.3 | 39 (45.9) | 36.8 | 20 (41.7) | 18.9 | |||
2 | 79 (31.2) | 73 (30.9) | 92.4 | 26 (30.6) | 32.9 | 19 (39.6) | 24.1 | |||
≥ 3 | 28 (11.1) | 26 (11.0) | 92.9 | 10 (11.8) | 35.7 | 4 (8.3) | 14.3 | |||
Not stated | 16 (6.3) | 14 (5.9) | 87.5 | 5 (5.9) | 31.3 | 3 (6.3) | 18.8 | |||
Distance to school (m) | 0.113 | 0.117 | 0.055 | |||||||
0–400 | 44 (17.4) | 40 (16.9) | 90.9 | 10 (11.8) | 22.7 | 5 (10.4) | 11.4 | |||
401–800 | 69 (27.3) | 65 (27.5) | 94.2 | 27 (31.8) | 39.1 | 16 (33.3) | 23.2 | |||
801 –1200 | 50 (19.8) | 48 (20.3) | 96.0 | 11 (12.9) | 22.0 | 5 (10.4) | 10.0 | |||
1201–2000 | 35 (13.8) | 34 (14.4) | 97.1 | 13 (15.3) | 37.1 | 6 (12.5) | 17.1 | |||
2001–10,000 | 41 (16.2) | 39 (16.5) | 95.1 | 18 (21.2) | 43.9 | 10 (20.8) | 24.4 | |||
> 10,000 | 12 (4.7) | 9 (3.8) | 75.0 | 5 (5.9) | 41.7 | 5 (10.4) | 41.7 | |||
Not stated | 2 (0.8) | 1 (0.4) | 50.0 | 1 (1.2) | 50.0 | 1 (2.1) | 50.0 |