Table 3

Distribution of Baseline Characteristics in the Intervention and Control Groups Included in the Mortality Analysis

Overall

Isolated

Associated


Variable

Intervention

N = 543

Control

N = 372

Intervention N = 394

Control

N = 305

Intervention

N = 149

Control

N = 67


Maternal Age

26.23

(6.83)

25.50

(6.67)

25.88 (6.58)

25.40 (6.53)

27.14 (7.39)

25.92 (7.30)


Number of prenatal visits

4.74***

(3.54)

5.87

(2.91)

4.47*** (3.56)

5.95 (2.87)

5.47 (3.39)

5.51

(3.09)


Maternal chronic illness


No (%)

425 (78.7)

291(82.4)

315 (80.6)

237(82.6)

110 (73.8)

54(81.8)


Yes (%)

115 (21.3)

62 (17.6)

76 (19.4)

50 (17.4)

39 (26.2)

12(18.2)


Ethnic Ancestry


Black (%)

57(10.7)

31 (8.8)

41 (10.5)

26 (9.1)

16 (11.0)

5 (7.7)


Native American (%)

407 (76.3)

262(74.4)

296 (76.1)

209(72.8)

111 (76.6)

53(71.5)


Other (%)

70 (13.1)

59 (16.8)

52 (13.4)

52 (18.1)

18 (12.4)

7 (10.7)


Birth weight (grams)

2,976.7*

(648.6)

3,046.6

(670.3)

(797.75)

3,031.9** (618.1)

3,123.8 (631.0)

2,831.0 (704.8)

2,694.8 (733.5)


Gestational age (weeks)

38.75

(2.86)

38.92

(2.74)

38.89* (2.80)

39.19 (2.51)

38.38 (2.97)

37.71 (3.37)


Time of cleft diagnosis


Prenatal (%)

116

(21.6) ***

38 (10.3)

64 (16.4)***

24 (7.9)

52

(35.4)**

14(21.2)


Other (%)

421 (78.4)

332(89.7)

326 (83.6)

280(92.1)

95 (64.6)

52 (78.8)


Sex


Male (%)

307 (57.3)

213(57.3)

222 (56.4)

178(58.4)

85 (57.1)

35(52.2)


Female (%)

236 (43.5)

159(42.7)

172 (43.7)

127(41.6)

64 (43.0)

32(47.8)


Multiple birth


No (%)

529 (97.4)

361(97.3)

381(96.7)

295(97.0)

148 (99.3)

66 (98.5)


Yes (%)

14 ( 2.6)

10 (2.7)

13 (3.3)

9 (3.0)

1 (0.7)

1 (1.5)


Associated Status


Isolated (%)

394 (72.6)

305(82.0)

-

-

-

-


Associated (%)

149 (27.4)

67 (18.0)

-

-

-

-


Type of Cleft


Palate only (%)

142 (26.2)

92 (24.7)

83 (21.1)

66 (21.6)

59 (39.6)

26(38.8)


Lip only (%)

96 (17.7)

67 (18.0)

88 (22.3)

60 (19.7)

8 (5.4)

7 (10.5)


Lip and Palate (%)

305 (56.2)

213(57.3)

223 (56.6)

179(58.7)

82 (55.0)

34(50.8)


Type of Delivery


Cesarean (%)

202 (37.2)

127(34.5)

132 (33.5)

94 (31.2)

70 (47.0)

33(49.3)


Other

341(62.8)

241(65.5)

262(66.5)

207(68.8)

79 (53.0)

34(50.8)


The Table includes the distribution of study variables in the study intervention and control groups that are included in the mortality analysis. Means and standard deviations (in parentheses) are reported for continuous variables. Counts of observations and percentages (in parentheses) are reported for categorical variables. Significant differences between intervention and control groups are indicated with * at p < 0.1, ** at p < 0.05 and *** at p < 0.01.

Wehby et al. BMC Pediatrics 2011 11:121   doi:10.1186/1471-2431-11-121

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