A deterministic approach for protecting privacy in sensitive personal data

Table 4 Estimated coefficients of the linear regression model predicting fasting glucose level of participants in the National Child Development Study using the original (left) and the anonymised (right) data

Coefficient	Original data				Anonymised data				Std. difference
Coefficient	Estimate	Std. Err.	t value	Pr(\(>\|t\|\))	Estimate	Std. Err.	t value	Pr(\(>\|t\|\))	Std. difference
Intercept	6.430	0.527	12.211	<2e–16	6.982	0.564	12.379	<2e–16	1.048
Sex (female)	− 0.098	0.057	− 1.729	0.084	− 0.153	0.061	− 2.524	0.012	0.959
Smoker (yes)	0.110	0.049	2.253	0.024	0.099	0.048	2.054	0.040	0.212
HDL	− 0.229	0.058	− 3.924	9.19e–05	− 0.245	0.059	− 4.119	4.06e–05	0.278
Height	− 0.013	0.003	− 4.225	2.57e–05	− 0.017	0.003	− 4.916	1.01e–06	1.10
Weight	0.010	0.002	6.265	5.18e–10	0.011	0.002	6.589	6.59e–11	0.606

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