- High daily temperature variation is associated with hip pain severity in people with symptomatic hip osteoarthritis.
Why this matters
- Although many people with osteoarthritis report that weather changes affect their pain levels, previous studies have yielded conflicting results.
- An internet-based case-crossover study.
- 129 people aged ≥40 years with hip pain (5-7 days a week) completed online questionnaires every 10 days for 90 days.
- Their reports of when pain was exacerbated were compared with publicly available weather data.
- Funding: None disclosed.
- Median age, 62.9 years.
- Median BMI, 29.1 kg/m2.
- Baseline mean mildest pain level: 2.5 out of 10.
- Baseline worst pain level: 8.1 out of 10.
- Higher daily temperature variation during 72 hours before the index date was associated with increased hip pain (P=.04):
- OR, 1.12 for variation of 10-20°C.
- OR, 3.89 for variation of >20°C.
- No significant association was seen between higher risk for pain and changes in barometric pressure, maximum or minimum temperature, relative humidity, or precipitation.
- Mostly white, mostly female study participants in Australia.