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Table 1 Selected characteristics of case and non-case children.

From: Spatial analysis of learning and developmental disorders in upper Cape Cod, Massachusetts using generalized additive models

Variable Special Education Educational Attainment ADHD
  N = 1538a N = 1542b N = 1535c
  Cases Non-Cases Cases Non-Cases Cases Non-Cases
  N (%) N (%) N (%) N (%) N (%) N (%)
Male 186 (66.9) 592 (47.0) 219 (66.8) 562 (46.7) 105 (74.5) 673 (48.3)
Female 92 (33.1) 668 (53.0) 124 (36.2) 637 (53.1) 36 (25.5) 721 (51.7)
Birth Weight       
   <2500 g 8 (2.9) 32 (2.5) 12 (3.5) 29 (2.5) 3 (2.1) 38 (2.7)
   >= 2500 g 270 (97.1) 1228 (97.5) 331 (96.5) 1170 (97.5) 138 (97.9) 1356 (97.3)
Gestational Duration       
   <37 Weeks 15 (5.4) 50 (4.0) 14 (4.1) 51 (4.3) 8 (5.7) 57 (4.1)
   >= 37 Weeks 263 (94.6) 1210 (96.0) 329 (95.9) 1148 (95.7) 133 (94.3) 1332 (95.9)
Maternal Cigarette Smoking
During Pregnancy
      
   Yes 81 (29.1) 331 (26.3) 116 (33.8) 296 (24.7) 41 (29.1) 370 (26.6)
   No 194 (69.8) 910 (72.2) 220 (64.1) 887 (74.0) 99 (70.2) 1002 (71.9)
   Missing 3 (1.1) 19 (1.5) 7 (2.1) 16 (1.3) 1 (0.7) 22 (1.6)
Maternal Alcoholic Beverage Consumption
During Pregnancy
      
   Yes 99 (35.6) 487 (38.7) 111 (32.4) 475 (39.6) 55 (39.0) 527 (37.8)
   No 175 (62.9) 750 (59.5) 224 (65.3) 703 (58.6) 85 (60.2) 839 (60.2)
   Missing 4 (1.4) 23 (1.8) 8 (2.3) 21 (1.8) 1 (0.7) 22 (1.6)
Maternal Race       
   White 270 (97.1) 1205 (95.6) 327 (95.3) 1152 (96.1) 136 (96.5) 1335 (95.8)
   Other 8 (2.9) 55 (4.4) 16 (4.7) 47 (3.9) 5 (3.5) 59 (4.2)
Maternal Education       
   <High School 13 (4.7) 39 (3.1) 31 (9.0) 23 (1.9) 4 (2.8) 48 (3.4)
   High School 115 (41.4) 435 (34.5) 183 (53.3) 362 (30.2) 44 (31.2) 505 (36.2)
   Some College 71 (25.5) 404 (32.0) 82 (24.0) 396 (33.0) 39 (27.7) 434 (31.1)
   4 Year College Grad 79 (28.4) 382 (30.3) 47 (13.7) 418 (34.9) 54 (38.3) 407 (29.2)
Paternal Occupation       
   Blue Collar 94 (33.8) 376 (29.8) 114 (33.2) 329 (27.4) 39 (27.7) 426 (30.6)
   White Collar 118 (42.4) 643 (51.0) 143 (41.7) 651 (54.3) 71 (50.3) 690 (49.5)
   Other 63 (22.7) 221 (17.5) 83 (24.2) 199 (16.6) 30 (21.3) 256 (18.4)
   Missing 3 (1.1) 20 (1.6) 3 (0.9) 20 (1.7) 1 (0.7) 22 (1.6)
  1. a Missing special education information N = 36.
  2. b Missing educational attainment information N = 32.
  3. c Missing ADHD information N = 39.