Effects of a performance and quality improvement intervention on the work environment in HIV-related care: a quasi-experimental evaluation in Zambia

Table 2 In-service training and supervision received in intervention and comparison groups

Item	Intervention group			Comparison group			Adjusted model – interaction P value^b
Item	Baseline, n = 27	Endline, n = 29	P value^a	Baseline, n = 16	Endline, n = 29	P value^a	Adjusted model – interaction P value^b
Percentage (%) who received in-service training in past year on:
Prevention of mother-to-child transmission of HIV	40.7 (11)	79.3 (23)	0.003	62.5 (10)	25.8 (8)	0.022	0.002
Antiretroviral therapy	55.6 (15)	75.9 (22)	0.109	62.5 (10)	44.8 (13)	0.266	0.218
Sexually transmitted infections	59.3 (16)	58.6 (17)	0.961	56.3 (9)	37.9 (11)	0.236	0.455
Tuberculosis	33.3 (9)	34.5 (10)	0.928	37.5 (6)	25.8 (7)	0.355	0.456
Infection prevention	37.0 (10)	55.2 (16)	0.174	50.0 (8)	58.6 (17)	0.588	0.365
Percentage (%) who received 2+ supervision visits in the past 6 months	52.2 (12)	79.3 (23)	0.038	69.2 (13)	73.1 (26)	0.808	0.055

^a P value from χ² at baseline or at endline.
^bInteraction term P value from multivariate linear regression models of each result on the intervention status, time point, and interaction of these two variables, while controlling for provider cadre and ZDF branch, and accounting for clustering of responses within each facility.

ISSN: 1478-4491