3.2.3. Tobacco Use

Changes in smoking and tobacco used were small in both groups. Two people in the intervention group quit smoking, while in the control group, one person quit and one started smoking.

## 3.2.4. Ergonomic Practices and Work Limitations

After the StIPP intervention activities, we observed a small but significant improvement in the intervention, compared to the control sites, for ergonomic practices, after adjusting for matched pairs, and age, gender, race, job title and trade (B = 0.20, *p* = 0.002) (Table 5). We also saw a significant small reduction in physical job demands at FU2 (B= −0.25, *p* = 0.008). Hypothesis 2a was therefore partially supported. There were no observable differences between the intervention and control sites in the worker's perceptions of their work limitations at FU1 or FU2 for the unadjusted or adjusted models (Table 5). Thus, hypothesis 2b was not supported.

**Table 5.** Effects of the ARM intervention on Working Conditions and Enterprise Outcomes from baseline to FU1 (1 month) and FU2 (6 months).


B = regression coefficient; CI = confidence intervals. Results from linear regression models with cluster robust standard errors to account for individual clustering within worksites (\*\* *p* < 0.05). <sup>1</sup> Adjusted with fixed effects for matched pairs and age, gender, race, title, and trade.
