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. 2009 Aug 28;4(8):e6815. doi: 10.1371/journal.pone.0006815

Table 3. Outcome of MC and DC twins after an uncomplicated course of pregnancy.

Parameter uncomplicated MC infants uncomplicated DC infants P value Mean difference (95% CI) Adjusted mean difference (95% CI)
No. of long-term survivors 70 98 0.002
Physical exam
Height (cm), mean (SD) 86.4±3.3 87.0±3.5
Head circumference (cm), mean (SD) 48.8±1.7 48.6±1.3
Weight (kg), mean (SD) 12.6±1.5 12.4±1.2
Griffiths Test
Total score
mean DQ (SD) 103±8 106±11 0.109 −2.53 (−5.62; 0.57) −0.88 (−3.79; 2.04)
Mild developmental delay 0 0 -
Severe developmental delay 0 2 (2.0) 0.512
Subscale A; locomotor
mean DQ (SD) 93±10 94±13 0.471 −1.34 (−5.00; 2.32) −0.89 (−4.61; 2.85)
Mild developmental delay 18 (25.7) 26 (26.5) 1.000
Severe developmental delay 0 2 (2.0) 0.511
Subscale B; personal-social
mean DQ (SD) 103±9 103±12 0.612 −0.82 (−4.12; 2.48) 1.00 (−2.25; 4.26)
Mild developmental delay 2 (2.9) 2 (2.0) 1.000
Severe developmental delay 0 2 (2.0) 0.511
Subscale C; hearing & language
mean DQ (SD) 99±15 104±12 0.014 −5.24 (−9.38; −1.09) −2.24 (−6.12; 1.64)
Mild developmental delay 12 (17.1) 3 (3.1) 0.002
Severe developmental delay 1 (1.4) 2 (2.0) 1.000
Subscale D; eye-hand coordination
mean DQ (SD) 107±9 107±12 0.682 −0.69 (−4.16; 2.79) 0.63 (−2.86; 4.11)
Mild developmental delay 1 (1.5) 0 0.412
Severe developmental delay 0 2 (2.0) 0.512
Subscale E; performance
mean DQ (SD) 110±13 112±14 0.225 −2.64 (−7.00; 1.71) −1.61 (−6.00; 2.77)
Mild developmental delay 1 (1.5) 2 (2.0) 1.000
Severe developmental delay 1 (1.5) 2 (2.0) 1.000