Table 4.

Regression parameters – Model B and Control LGA Clusters

	No. of individuals tested HIV positive				No. of HIV‐positive individuals initiated on ART
	Coefficient	t‐stat	p‐value	95% CI	Coefficient	t‐stat	p‐value	95% CI
CommART Model B LGA cluster
β0: intercept	32.75	8.81	0.00	25.00 to 40.51	7.93	6.91	0.00	5.54 to 10.33
β1: pre‐commART implementation trend	−0.05	−0.13	0.89	−0.84 to 0.74	0.93	5.33	0.00	0.57 to 1.29
β2: commART effect on level immediately after introduction	30.15	2.89	0.01	8.38 to 51.93	6.15	1.07	0.29	−5.85 to 18.15
β3: commART effect on trend after introduction (relative to pre‐introduction)	3.49	1.71	0.10	−0.77 to 7.74	2.48	1.72	0.10	−0.52 to 5.47
β1 + β3: Linear trend post commART introduction	3.43	1.71	0.10	−0.74 to 7.61	3.4	2.39	0.02	0.44 to 6.38
CommART Model B LGA and control LGA cluster
β4: indicator level difference before commART introduction	−5.97	−0.77	0.45	−21.65 to 9.70	−5.93	−1.86	0.07	−12.39 to 0.52
β5: indicator slope difference before commART introduction	−0.36	−0.39	0.70	−2.26 to 1.52	−0.31	−0.87	0.39	−1.06 to 0.42
β6: indicator level difference after commART introduction	26.83	2.19	0.03	2.03 to 51.62	8.48	1.22	0.23	−5.57 to 22.54
β7: indicator slope difference after commART introduction (pre‐post trend change difference)	4.74	2.09	0.04	0.16 to 9.31	4.13	2.72	0.01	1.06 to 7.19
Post intervention trend
β1 + β5 + β3 + β7: Linear trend post‐commART (Model A LGA cluster)	3.44	1.72	0.09	−0.61 to 7.48	3.41	2.39	0.02	0.53 to 6.29
β1 + β3: Linear trend post‐commART (Control LGA cluster)	−0.94	−1.91	0.06	−1.92 to 0.05	−0.40	−1.15	0.26	−1.10 to 0.30
β5 + β7: Difference	4.37	2.12	0.04	0.21 to 8.54	3.81	2.59	0.01	0.85 to 6.77