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Table 4 ANCOVA analysis of mean change in BDI-II scores by baseline characteristics and intervention duration

From: Effect of fish oil omega-3 fatty acids on reduction of depressive symptoms among HIV-seropositive pregnant women: a randomized, double-blind controlled trial

Baseline characteristics Duration of intervention
Week 4 Week 8
Regression coefficient (95% CI) p value Regression coefficient (95% CI) p value
Intervention group 0.40 (− 1.25 to 2.05) 0.63 1.00 (− 0.58 to 2.60) 0.21
Baseline BDI-II scores − 0.79 (− 0.94 to − 0.64) 0.00* − 0.87 (− 1.02 to − 0.73) 0.00*
Age (single years) 0.02 (− 0.16 to 0.21) 0.82 0.11 (− 0.06 to 0.28) 0.21
Gestational age (months) 0.03 (− 0.21 to 0.26) 0.83 0.04 (− 0.17 to 0.25) 0.69
CD4 cell count (cells/mm3) 0.01 (− 0.00 to 0.01) 0.12 − 0.001 (− 0.01 to 0.01) 0.62
Employment − 0.85 (− 2.79 to 1.09) 0.39 − 58 (− 2.19 to 1.05) 0.47
Knew HIV status when pregnant − 1.54 (− 3.33 to 0.26) 0.09 − 0.83 (− 2.71 to 1.02) 0.37
HIV status disclosure − 1.16 (− 3.09 to 0.76) 0.24 − 0.49 (− 2.22 to 1.22) 0.57
Marital status 1.03 (− 1.02 to 3.08) 0.32 0.84 (− 0.98 to 2.66) 0.36
Education level − 0.51 (− -2.37 to 1.35) 0.59 − 0.40 (− 2.09 to 1.29) 0.64
Parity − 0.99 (− 2.06 to 1.86) 0.92 − 1.92 (− 4.10 to 0.26) 0.08
Stressful life event − 0.19 (− 1.99 to 1.62) 0.84 1.01 (− 0.48 to 2.59) 0.18
PMTCT m2 m meetings 2.04 (0.37 to 3.70) 0.02* 1.09 (− 0.44 to 2.65) 0.16
MUAC (cm) 0.03 (− 0.34 to 0.39) 0.87 − 0.38 (− 0.35 to 0.27) 0.81
Dietary omega-3 − 2.98 (− 5.32 to − 0.64) 0.01* − 0.32 (− 2.25 to 1.97) 0.89
Dietary vitamin C − 0.85 (− 2.70 to 0.99) 0.36 0.94 (− 0.97 to 2.85) 0.33
Dietary vitamin B1 − 3.26 (− 5.21 to − 1.31) 0.001* − 1.41 (− 3.65 to 0.83) 0.22
Dietary vitamin B6 2.27 (− 0.37 to 4.91) 0.09 2.24 (− 0.04 to 4.51) 0.05*
Dietary vitamin B12 0.07 (− 2.42 to 2.57) 0.95 − 0.63 (− 2.80 to 1.56) 0.57
Dietary folate 0.62 (− 2.02 to 3.27) 0.64 1.44 (− 1.29 to 4.18) 0.30
Dietary vitamin E − 0.59 (− 3.27 to 2.09) 0.66 − 1.29 (− 3.19 to 0.62) 0.18
Dietary zinc 8.67 (− 4.49 to 21.8) 0.19 5.39 (0.64 to 10.14) 0.03*
Dietary selenium 1.23 (− 1.20 to 3.66) 0.32 1.84 (− 0.25 to 3.94) 0.08
Dietary calcium 1.23 (− 0.72 to 3.27) 0.21 − 1.64 (− 3.60 to 032) 0.10
  1. *Baseline variables that were significantly associated with the change in BDI-II depressive symptom scores at week 4 and week 8