Table 5 Sensitivity analysis: Associations of CLBP pain intensity and disability in the pre-pandemic vs. pandemic group of invited participants only
Disability model | Pre-pandemic group (n = 1,411) | Pandemic group (n = 1,267) | ||
|---|---|---|---|---|
Moderate disability OR (95% CI) | High disability OR (95% CI) | Moderate disability OR (95% CI) | High disability OR (95% CI) | |
Regular exercise | ||||
No exercise | Reference | Reference | Reference | Reference |
2–4 h/week | 1.27 (0.79, 2.06) | 0.98 (0.60, 1.59) | 0.64 (0.36, 1.13) | 0.42 * (0.20, 0.86) |
> 4 h/week | 0.77 (0.44, 1.35) | 0.66 (0.37, 1.18) | 0.39 ** (0.20, 0.76) | 0.30 ** (0.13, 0.68) |
Sitting | ||||
Less than half of the day | Reference | Reference | Reference | Reference |
At least 3/4 of the day | 0.93 (0.61, 1.41) | 0.85 (0.55, 1.32) | 1.16 (0.77, 1.74) | 0.63 + (0.37, 1.07) |
Almost all day | 0.71 (0.42, 1.17) | 0.72 (0.43, 1.22) | 0.99 (0.62, 1.58) | 0.74 (0.40, 1.35) |
Mental health | ||||
PHQ-4 sum score | 1.12 ** (1.03, 1.22) | 1.44 *** (1.33, 1.56) | 1.33 *** (1.22, 1.44) | 1.67 *** (1.52, 1.84) |
Pain intensity model | Low intensity (base outcome) | High intensity OR (95% CI) | Low intensity (base outcome) | High intensity OR (95% CI) |
Regular exercise | ||||
No exercise | Reference | Reference | ||
2–4 h/week | 1.07 (0.74, 1.55) | 0.93 (0.55, 1.56) | ||
> 4 h/week | 0.69 (0.44, 1.07) | 0.77 (0.42, 1.40) | ||
Sitting | ||||
Less than half of the day | Reference | Reference | ||
At least 3/4 of the day | 1.00 (0.71, 1.40) | 0.99 (0.69, 1.43) | ||
Almost all day | 0.92 (0.61, 1.38) | 0.91 (0.59, 1.39 | ||
Mental health | ||||
PHQ-4 sum score | 1.24 *** (1.18, 1.32) | 1.36 *** (1.27, 1.46) | ||