From: Cohort profile: the Saskatchewan Rural Health Study—adult component
Completers (n = 4741) | Drop-outs (n = 3520) | p value | |
---|---|---|---|
Quadranta | 0.23 | ||
Southwest | 854 (18.0) | 684 (19.5) | |
Southeast | 1016 (21.4) | 776 (22.1) | |
Northeast | 1391 (29.3) | 1009 (28.7) | |
Northwest | 1480 (31.2) | 1047 (29.8) | |
Rural municipalitya, n (%) | 0.0001 | ||
Town | 2050 (43.2) | 1735 (49.4) | |
RM | 2691 (56.8) | 1781 (50.7) | |
Location of homea, n (%) | 0.0001 | ||
Farm | 2127 (45.1) | 1318 (37.8) | |
Non-farm | 2593 (54.9) | 2170 (62.2) | |
Sex, n (%) | 0.21 | ||
Male | 2305 (48.6) | 1759 (50.0) | |
Female | 2436 (51.4) | 1758 (50.0) | |
Age, n (%) | 0.0001 | ||
18–45 | 893 (18.8) | 1051 (29.9) | |
46–55 | 1261 (26.6) | 787 (22.4) | |
56–65 | 1273 (26.9) | 675 (19.2) | |
> 65 | 1314 (27.7) | 1004 (28.6) | |
Mean ± S.E. | 57.0 ± 0.2 | 55.4 ± 0.5 | 0.002 |
Socio-economic status | |||
Income, n (%) | 0.0001 | ||
Money left at end of montha | |||
Some money | 2653 (61.7) | 1774 (56.4) | |
Just enough money | 900 (20.9) | 695 (22.1) | |
Not enough money | 749 (17.4) | 679 (21.6) | |
Lowest income | 134 (3.3) | 190 (6.5) | 0.0001 |
Lowest middle income | 624 (15.4) | 592 (20.3) | |
Upper middle income | 1437 (35.3) | 868 (29.8) | |
Highest income | 1871 (46.0) | 1261 (43.3) | |
Educationa, n (%) | 0.0001 | ||
≤ grade 12 | 2716 (57.9) | 2225 (64.2) | |
> grade 12 | 1979 (42.2) | 1239 (35.8) | |
Respiratory health outcomes, n (%) | |||
Cougha | 677 (14.4) | 558 (16.1) | 0.04 |
Wheeze | 1886 (39.8) | 1471 (41.8) | 0.07 |
Asthma | 386 (8.1) | 329 (9.4) | 0.05 |
Chronic bronchitisa | 281 (6.0) | 202 (5.9) | 0.82 |
COPDa | 91 (1.9) | 99 (2.9) | 0.006 |
Lung function (mean ± S.E.) | |||
Male | N = 577 | N = 185 | |
FVC | 4.73 ± 0.04 | 4.67 ± 0.07 | 0.44 |
FEV1 | 3.59 ± 0.03 | 3.53 ± 0.06 | 0.42 |
FEV1/FVC*100 | 75.81 ± 0.31 | 75.36 ± 0.6 | 0.49 |
FEF25–75 | 3.13 ± 0.05 | 3.07 ± 0.09 | 0.53 |
Female | N = 644 | N = 203 | |
FVC | 3.40 ± 0.03 | 3.43 ± 0.05 | 0.55 |
FEV1 | 2.66 ± 0.02 | 2.67 ± 0.04 | 0.75 |
FEV1/FVC*100 | 78.02 ± 0.2 | 77.6 ± 0.5 | 0.44 |
FEF25–75 | 2.52 ± 0.04 | 2.52 ± 0.07 | 0.99 |