Table 2. Revised Brunet-Lezine development quotient scores related to perinatal mother-to-child Chikungunya virus infection, CHIMERE cohort, Reunion Island, 2008.

Exposure group	Unexposed Uninfected children (n = 65)		Exposed Uninfected children (n = 70)		Exposed Infected children (n = 33)
DQ scores	mean	(95% CI)	mean	(95% CI)	mean	(95% CI)	P value
Global	100.1	(96.6–113.1)	100.4	(97.5–114.3)	86.3	(81.2–93.5)	<0.001
Movement/Posture	111.3	(107.1–123.4)	115.5	(112.0–128.5)	98.5	(91.0–105.3)	<0.001
Coordination	93.6	(90.3–107.0)	95.8	(92.4–117.1)	83.5	(76.0–90.9)	<0.001
Language	97.7	(93.1–110.9)	94.1	(90.6–108.5)	80.0	(74.8–87.5)	<0.001
Sociability	105.5	(101.0–118.2)	103.0	(99.0–116.8)	90.5	(84.2–97.5)	0.001

DQ: development quotient. DQ scores were measured between 15.8 and 27 months of age. Developmental delay is moderate if. ^†85≤DQ ≤70, severe if. ^‡DQ score <70.

Data are means and 95% confidence intervals. P values are given for Kruskal-Wallis or Fisher exact tests comparing the three groups:

^## P value<0.01 for Fisher exact test comparing unexposed uninfected versus infected children:

**P value<0.01 for Fisher exact test comparing exposed uninfected versus infected children.