Table 2.
PDQ Scores and Predicting Variables Using Multivariate Linear Regression.
| Variable*
(n) |
Baseline PDQ Mean (SD) | Follow-up PDQ Mean (SD) | PDQ change from baseline (95% CI) | Regression coefficient†, b | P-value |
|---|---|---|---|---|---|
| All participants (n = 35) | 92.4 (6.1) | 81.9 (7.7) | −10.6 (−22.3 – 1.2) | − | .08‡ |
| Intervention | |||||
| Chiropractic team (n = 20) | 79.9 (8.6) | 55.0 (8.9) | −25.0 (−40.3 – −9.6) | 31.0 | .01 |
| Pain team (n = 12) | 109.8 (6.9) | 113.1 (6.2) | 3.3 (−10.4 – 17.0) | ||
| Sex | |||||
| Female (n = 19) | 95.4 (8.0) | 79.2 (10) | −16.2 (−35.8 – 3.4) | .71 | |
| Male (n = 16) | 88.9 (9.5) | 85.1 (11.8) | −3.9 (−16.7 – 8.9) | ||
| BMI | |||||
| <30 (n = 17) | 96.0 (10.7) | 84.8 (11.2) | −11.2 (−28.5 – 6.2) | .34 | |
| ≥30 (n = 18) | 89.1 (6.3) | 79.1 (10.9) | −10.0 (−27.7 – 7.7) | ||
| Other pain diagnosis‖ | |||||
| Yes (n = 14) | 103.8 (6.7) | 109.6 (8.4) | 5.9 (−11.8 – 23.6) | .88 | |
| No (n = 21) | 84.9 (8.8) | 63.3 (9.7) | −21.5 (−36.4 – −6.7) | ||
| Hypertension | |||||
| Yes (n = 22) | 95.8 (6.4) | 87.1 (8.8) | −8.7 (−24.1 – 6.8) | .13 | |
| No (n = 13) | 86.8 (12.5) | 73.0 (14.5) | −13.8 (−34.4 – 6.9) | ||
| Mental health diagnosis | |||||
| Yes (n = 13) | 106.8 (9.1) | 91.6 (12.1) | −15.2 (−37.6 – 7.3) | .05 | |
| No (n = 22) | 84.0 (7.6) | 76.1 (9.9) | −7.9 (−22.5 – 6.7) | ||
| COVID¶ | |||||
| Pre-COVID (n = 23) | 98.7 (6.1) | 76.2 (9.1) | −22.6 (−35.1 – −10.0) | 25.0 | <.01 |
| Post-COVID (n = 12) | 80.3 (13.0) | 92.8 (14.2) | 12.4 (−8.3 – 33.2) | ||
*
Excluded variables with subgroups of n ≤ 6 (age, race, insurance type, diabetes).
†
Multivariate linear regression, R2 = 0.63. Only statistically significant coefficients displayed.
‡
This represents a paired t-test determining significance of the baseline and follow-up PDQ.
‖
This variable had a statistically significant association with a change in PDQ score on univariate analysis using a two-sample t-test, p = 0.02.
¶
before/after March 1, 2020.