Table 3. Multivariable linear regression model of predictors of CD4 count, stratified by gender (n = 5379).

	Female (n = 3302)			Male (n = 2077)
Parameter	β	95% CI	p-value	β	95% CI	p-value
Time on ART
0 to 1 year (per year of ART up to 1 year)	109.8	92.5 to 127.0	<0.001	65.6	45.2 to 86.0	<0.001
>1 year (per year of ART after 1 year)	38.4	32.1 to 44.7	<0.001	22.6	16.9 to 28.4	<0.001
Age	0.1	−0.8 to 1.0	0.777	0.3	−0.6 to 1.1	0.578
TB co-infection	−104.4	−161.3 to −47.4	<0.001	−109.5	−159.0 to −60.1	<0.001
Pregnant	−31.8	−53.1 to −10.7	0.003	n/a	n/a	n/a
Deworming	−67.3	−103.9 to −30.7	<0.001	−34.3	−88.7 to 20.1	0.217
Deworming×Time on ART interaction†
Deworming during 0 to 1 year on ART	63.0	6.0 to 120.1	0.030	13.0	−57.4 to 83.4	0.717
Deworming during >1 year on ART	−15.4	−32.6 to 1.8	0.078	−6.9	−29.3 to 15.5	0.544

^†Predicted difference in CD4 count between patients receiving versus not receiving deworming therapy in the past 90 days. The interaction terms were separated by duration of prior ART use as up to 1 year of therapy versus greater than 1 year of therapy.