From: Inter-method reliability of paper surveys and computer assisted telephone interviews in a randomized controlled trial of yoga for low back pain
Method of survey administration
Baseline n(%)
6 weeks n(%)
12 weeks n(%)
Paper (n = 95)
95 (100)
88 (93)
86 (90)
CATI (n = 45)
44 (98)
32 (71)
Both (n = 45)
30 (67)
31 (69)