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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)
  1. aTwo households were not identified in baseline
  2. bFour individuals were not identified by town/RM
  3. –, data not collected