Table 5 Multivariable-adjusted odds ratios (95% confidence interval) of significant headache impact in relation to socio-demographic variables and headache characteristics among individuals with tension-type headache

Headache frequency

 <1 day/month

reference

 1–14 days/month

2.54 (1.47–4.39)

0.001

 ≥15 days/month

23.83 (5.46–104.03)

<0.001

Headache time duration

 <1 hour

reference

 ≥1 and < 4 hours

1.84 (1.04–3.25)

0.035

 ≥4 hours

2.44 (1.17–5.11)

0.017

Headache intensity

 Mild

reference

 Moderate

1.69 (0.94–3.05)

0.082

 Severe

3.01 (0.91–10.02)

0.072

No aggravation by routine activity

0.37 (0.21–0.66)

0.001

Phonophobia

1.73 (1.02–2.95)

0.044