Table 7. Age-adjusted mean changes in weight and height-for-age Z-scores among children according to Giardia infection.

Variable	Age group (years)				Overall
	≥10 years		<10 years
	Giardia +ve	Giardia −ve	Giardia +ve	Giardia −ve	Giardia +ve	Giardia −ve
Δ WAZ (0–3 mo)	0.20(0.07,0.35)	0.14(0.06,0.22)	0.26(0.14,0.38)*	0.09(0.03,0.13)	0.23(0.14,0.33)*	0.11(0.06,0.15)
Δ HAZ (0–3 mo)	0.11(0.02,0.24)	0.08(0.01,0.18)	0.13(0.02,0.32)	0.05(0.01,0.13)	0.12(0.04,0.27)	0.06(0.01,0.16)
Δ WHZ (0–3 mo)	0.34(0.15,0.48)*	0.22(0.13,0.36)	0.26(0.12,0.33)	0.14(0.01,0.24)	0.30(0.22,0.50)*	0.17(0.13,0.25)
Δ WAZ (3–6 mo)	0.21(0.14,0.30)	0.18(0.11,0.24)	0.25(0.20,0.33)*	0.15(0.11,0.19)	0.23(0.19,0.30)*	0.16(0.12,0.19)
Δ HAZ (3–6 mo)	0.09(−0.01,0.25)	0.16(0.05,0.26)	0.15(0.05,0.26)	0.15(0.10,0.20)	0.12(0.04,0.21)	0.15(0.12,0.21)
Δ WHZ (3–6 mo)	0.21(0.08,0.44)	0.17(−0.06,0.26)	0.21(0.14,0.32)*	0.10(0.02,0.13)	0.21(0.15,0.32)	0.13(0.07,0.19)
Δ WAZ (0–6 mo)	0.40(0.31,0.57)	0.33(0.24,0.43)	0.49(0.34,0.59)*	0.24(0.19,0.32)	0.46(0.35,0.54)*	0.27(0.22,0.33)
Δ HAZ (0–6 mo)	0.20(0.10,0.38)	0.23(0.11,0.29)	0.30(0.16,0.54)	0.19(0.10,0.26)	0.26(0.12,0.44)	0.21(0.13,0.26)
Δ WHZ (0–6 mo)	0.50(0.41,0.71)*	0.28(0.16,0.39)	0.45(0.32,0.63)*	0.22(0.14,0.29)	0.48(0.36,0.62)*	0.27(0.16,0.35)

All values are mean (95% confidence interval); Δ: change; mo: months; WAZ: weight-for-age Z-scores; HAZ: height-for-age Z-scores; WHZ: weight-for- height Z-scores.

^*Significant difference compared to Giardia-negative children (P<0.05; Independent samples t-test).