Table 4

Odds ratios estimated by logistic regression showing factors related to a 20-point improvement in THI score

Follow-up questionnaire after 1 month

Follow-up questionnaire after 1–2 years

Odds ratio

p-value

Odds ratio

p-value

Age (continuous variable)

1,083

0,012

1,027

0,479

Woman (= 1) vs. Man

1,234

0,789

0,942

0,944

Skilled worker (= 1) vs. Others

1,447

0,637

0,793

0,782

Tinnitus duration: >5 years (= 1) vs. ≤ 5 years

0,205

0,027

1,130

0,869

Tinnitus strength: Loud or very loud (= 1) vs. Weaker

0,877

0,893

4,408

0,166

Tinnitus sounds: High-pitched whine/singing (= 1) vs. Others

0,520

0,415

0,478

0,448

Baseline THI score (continuous variable)

1,057

0,005

1,064

0,007

Sound intolerance: Yes (= 1) vs. No

2,718

0,193

0,656

0,599

CHC therapist: Therapist 1 (= 1) vs. Therapists 2+3

9,551

0,016

9,655

0,062

Hearing aid type: Phonak (= 1) vs. GN Resound

2,995

0,121

1,011

0,988

Client's lifestyle changes: Yes (= 1) vs. No

1,288

0,713

0,826

0,825

Constant term

0,000

0,000

0,001

0,012

Gudex et al. BMC Ear, Nose and Throat Disorders 2009 9:6   doi:10.1186/1472-6815-9-6