Table 4.

“Normal” (QTT T1 $\to$ pain T2) and “reverse” (pain T1 $\to$ QTT T2) time-lagged effects from path analyses

		Normal causality model	Reverse causality model	Reciprocal causality model
	Path	Est [95% CI]	Est [95% CI]	Est [95% CI]
Neck pain	QTT T1 $\to$ Pain T2	0.08 [0.02, 0.14]	-	0.08 [0.03, 0.14]
	Pain T1 $\to$ QTT T2	-	0.02 [-0.06, 0.09]	0.03 [-0.04, 0.10]

Note: QTT: Quality of technology training, Est: Estimate, CI: Confidence interval

Effect estimates are derived from ordinal probit regressions, and only direction and significance should be interpreted. All models are adjusted for age, gender, educational level, number of years employed in current position, and percentage employement. Statistically significant estimates are given in bold