The influence of self-reported leisure time physical activity and the body mass index on recovery from persistent back pain among men and women: a population-based cohort study

Table 4 Adjusted RR of recovery from PBP ^* associated with levels of main exposures by sex and SRH

Note: Risk ratio (RR) together with corresponding 95% confidence interval (95% CI). Men and women are reported separately and presented by good and poor self-rated health.
^* Recovered from persistent back pain (PBP) = “No periods of considerably disturbing back pain lasting for 7 days or more, during the latest 5-year period”. Reported at follow-up in 2007.
^a Good = very good and good self-rated health; Poor = fair, poor and very poor self-rated health.
^b Number of participants was less than the study population according to missing values in self-rated health. Eleven men and 28 women had missing values in self-rated health.
^c Adjusted log-binomial regression model including PA, BMI, age and neck pain for men and PA, BMI and age for women.
^d PA: Self-reported regular leisure time physical activity the latest 12 months. Reported at baseline in 2002.
^e Sedentary: Mostly sedentary or low intensive activity like walking or cycling < 2 hours a week.
^f Low: Low intensive activity like walking or cycling ≥ 2 hours a week.
^g Moderate: At least 30 min activity, 1-2 sessions per week with activities like running, swimming, tennis, aerobics or similar.
^h High: At least 30 min activity, ≥ 3 sessions per week with activities like running, swimming, tennis, aerobics or similar.
ⁱ BMI: Overweight; BMI ≥ 25, Normal weight; BMI < 25. Reported at baseline in 2002.
^j Reference category (RR = 1.00).

ISSN: 1471-2458