Table 1 Response rates for the Saskatchewan Rural Health Study in the 2010 baseline and 2014 follow-up surveys
From: Cohort profile: the Saskatchewan Rural Health Study—adult component
Baseline (2010) | Follow-up (2014) | |||
|---|---|---|---|---|
Small town (n = 15) | RM (n = 32) | Small town (n = 15) | RM (n = 32) | |
Household addresses (ratepayers) baseline: n = 11,004 Follow-up: n = 4454 | 5318 | 5683 | 2124 | 2330 |
Household returned surveys, n (%) | 2800 (52.7) | 2910 (51.2) | 1487 (70.0) | 1662 (71.3) |
No response, n (%) | 2518 (47.3) | 2773 (48.8) | 637 (30.0) | 668 (28.7) |
Response rate (based on household addresses) n (%) Baseline: n = 4624a Follow-up: n = 2797 | 2242 (42.2) | 2380 (41.9) | 1279 (60.2) | 1518 (65.1) |
Persons participating Baseline: n = 8261b Follow-up: n = 4741 | 3785 | 4472 | 2050 | 2691 |
Age (mean + SE) | 56.3 + 0.28 | 55.9 + 0.22 | 61.4 ± 0.3 | 61.0 ± 0.3 |
Male:female ratio | 1774/2007 | 2292/2179 | 930/1120 | 1375/1316 |
Clinical assessments Baseline: n = 1675 Follow-up: n = 885 | ||||
Lung function, n (%) | 679 (40.4) | 930 (55.3) | 356 (40.2) | 460 (52.0) |
Allergy test, n (%) | 686 (40.8) | 929 (55.3) | – | – |
Both, n (%) | 653 (38.8) | 896 (53.3) | – | – |