Table 5 Baseline predictors for chronic low back pain (LBP) in Dphacto, N = 842
Model 1 | Model 2 | Model 3 | |||||
|---|---|---|---|---|---|---|---|
Demographic factors | n | OR (95 % CI) | P-value | OR (95 % CI) | P-value | OR (95 % CI) | P-value |
Age (years) | 842 | 1.03 (1.00–1.05) | 0.01 | 1.03 (1.01–1.05) | 0.01 | 1.01 (0.99–1.04) | 0.29 |
Gender | 842 | ||||||
Male | 430 | REF | REF | REF | |||
Female | 412 | 1.14 (0.81–1.61) | 0.46 | 1.08 (0.76–1.54) | 0.65 | 1.17 (0.75–1.83) | 0.49 |
Sector | 842 | ||||||
Manufacturing | 602 | REF | REF | REF | |||
Cleaning | 164 | 1.36 (0.89–2.08) | 0.25 | 1.25 (0.79–1.98) | 0.46 | 1.05 (0.63–1.77) | 0.83 |
Transport | 76 | 1.06 (0.57–1.96) | 0.75 | 1.04 (0.55–1.98) | 0.83 | 0.97 (0.47–2.01) | 0.89 |
Position | 842 | ||||||
Blue-collar | 693 | REF | REF | REF | |||
White-collar | 149 | 0.30 (0.16–0.57) | <.01 | 0.30 (0.16–0.56) | <.01 | 0.46 (0.21–0.99) | <0.05 |
Seniority | 816 | ||||||
0–5 years | 178 | REF | REF | REF | |||
5–10 years | 192 | 0.91 (0.53–1.58) | 0.41 | 0.88 (0.51–1.52) | 0.60 | 0.92 (0.50–1.68) | 0.54 |
10–20 years | 220 | 0.96 (0.57–1.62) | 0.57 | 0.85 (0.50–1.45) | 0.45 | 0.90 (0.49–1.64) | 0.45 |
> 20 years | 226 | 1.38 (0.84–2.27) | 0.06 | 1.13 (0.66–1.93) | 0.30 | 1.34 (0.72–2.48) | 0.14 |
Workability | 842 | ||||||
9–10 | 469 | REF | REF | REF | |||
8 | 211 | 2.11 (1.37–3.23) | 0.62 | 2.11 (1.38–3.25) | 0.59 | 1.70 (1.06–2.71) | 0.68 |
0–7 | 163 | 3.65 (2.37–5.60) | <.01 | 3.61 (2.34–5.56) | <.01 | 2.41 (1.49–3.89) | <0.01 |
Physical strain at work | 813 | ||||||
1–3 | 224 | REF | REF | REF | |||
4–7 | 415 | 2.05 (1.26–3.34) | 0.25 | 2.06 (1.27–3.37) | 0.22 | 1.17 (0.64–2.12) | 0.93 |
8–10 | 174 | 2.74 (1.59–4.72) | <.01 | 2.69 (1.55–4.67) | <.01 | 1.41 (0.72–2.77) | 0.29 |
BMI (kg/m2) | 842 | ||||||
< 25 | 306 | REF | REF | REF | |||
25–30 | 320 | 0.91 (0.61–1.36) | 0.80 | 0.90 (0.60–1.34) | 0.80 | 0.73 (0.46–1.15) | 0.96 |
> 30 | 216 | 0.90 (0.58–1.41) | 0.79 | 0.88 (0.56–1.38) | 0.72 | 0.54 (0.32–0.90) | <0.05 |
Back endurance | 842 | ||||||
= > 90 sec | 326 | REF | REF | REF | |||
46–89 sec | 89 | 1.82 (0.96–3.47) | 0.95 | 1.80 (0.94–3.43) | 0.99 | 1.56 (0.78–3.12) | 0.91 |
11–45 sec | 124 | 2.10 (1.20–3.68) | 0.50 | 2.05 (1.17–3.61) | 0.48 | 1.76 (0.93–3.35) | 0.48 |
< 10 sec | 303 | 3.03 (1.97–4.68) | <.01 | 2.81 (1.80–4.39) | <.01 | 1.92 (1.16–3.19) | 0.14 |
LBP intensity baseline | 837 | ||||||
0 | 257 | REF | REF | REF | |||
1–4 | 295 | 3.12 (1.76–5.84) | 0.14 | 3.26 (1.74–6.10) | 0.19 | 3.28 (1.71–6.27) | 0.57 |
5–7 | 175 | 9.06 (4.86–16.88) | <.01 | 9.24 (4.95–17.27) | <.01 | 7.85 (4.11–14.99) | <.01 |
8–10 | 110 | 8.44 (4.32–16.50) | <.01 | 8.40 (4.29–16.46) | <.01 | 6.52 (3.19–13.33) | <.01 |