Table 3

Percentage of children completing B4SC, and ORs for completing, by perinatal and health characteristics

N% CompleteOR (95% CI)
VHTNurse* checksSDQ – TeacherVHTNurse checksSDQ – Teacher
Mother smoking status
 Regular smoker38 460 (15.2)33 366 (86.8)31 026 (80.7)21 240 (55.2)0.56 (0.57 to 0.53)0.63 (0.65 to 0.61)0.78 (0.79 to 0.76)
 Ex-smoker45 420 (18.0)41 670 (91.7)38 925 (85.7)28 647 (63.1)0.94 (0.98 to 0.90)0.90 (0.93 to 0.88)1.08 (1.10 to 1.05)
 Never smoked111 219 (44.1)102 540 (92.2)96 642 (86.9)68 214 (61.3)
 Missing57 180 (22.7)
Birth weight
 <2500 g14 049 (5.6)11 751 (83.6)11 112 (79.1)7680 (54.7)0.57 (0.60 to 0.55)0.73 (0.76 to 0.70)0.87 (0.90 to 0.84)
 2500–4000 g187 239 (74.2)168 387 (89.9)156 939 (83.8)108 762 (58.1)
 >4000 g34 746 (13.8)31 287 (90.0)28 947 (83.3)20 496 (59.0)1.01 (1.05 to 0.97)0.96 (0.99 to 0.93)1.04 (1.06 to 1.01)
 Missing16 245 (6.4)
Gestation
 <37 weeks17 925 (7.1)15 105 (84.3)14 256 (79.5)9888 (55.2)0.60 (0.63 to 0.57)0.76 (0.79 to 0.73)0.88 (0.91 to 0.85)
 37–42 weeks217 128 (86.1)195 228 (89.9)181 734 (83.7)126 483 (58.3)
 >42 weeks1443 (0.6)1299 (90.0)1200 (83.2)0696 (48.2)1.00 (1.19 to 0.85)0.97 (1.11 to 0.84)0.67 (0.75 to 0.61)
 Missing15 783 (6.3)
Child referred for disability support assessment
 No247 878 (98.3)221 568 (89.4)206 451 (83.3)143 463 (57.9)
 Yes4401 (1.7)3270 (74.3)2880 (65.4)1917 (43.6)0.34 (0.37 to 0.32)0.38 (0.40 to 0.36)0.56 (0.60 to 0.53)
 Missing0 (0.0)
Number of quarters enrolled with GP age 0–4 years
 0–39438 (3.7)5328 (56.5)4464 (47.3)2826 (29.9)0.10 (0.11 to 0.10)0.13 (0.13 to 0.12)0.29 (0.30 to 0.27)
 4–737 671 (14.9)32 592 (86.5)29 547 (78.4)20 919 (55.5)0.52 (0.54 to 0.50)0.52 (0.54 to 0.51)0.83 (0.85 to 0.81)
 8–1192 856 (36.8)83 955 (90.4)78 396 (84.4)55 284 (59.5)0.76 (0.79 to 0.74)0.78 (0.80 to 0.76)0.98 (1.00 to 0.96)
 12+97 800 (38.8)90 510 (92.5)85 527 (87.5)58 638 (60.0)
 Missing14 505 (5.7)
Number of hospital admissions age 0–4 years
 None93 474 (37.1)83 109 (88.9)77 238 (82.6)53 415 (57.1)
 1–2102 696 (40.7)93 810 (91.3)87 636 (85.3)61 803 (60.2)1.32 (1.35 to 1.28)1.22 (1.25 to 1.19)1.14 (1.15 to 1.11)
 3–521 390 (8.5)19 101 (89.3)17 937 (83.9)12 633 (59.1)1.04 (1.09 to 0.99)1.09 (1.14 to 1.05)1.09 (1.11 to 1.05)
 6+9762 (3.9)8277 (84.8)7707 (78.9)5397 (55.3)0.69 (0.74 to 0.65)0.79 (0.83 to 0.75)0.93 (0.97 to 0.89)
 Missing24 957 (9.9)
Total days in hospital age 0–4 years
 None123 231 (48.8)110 022 (89.3)102 492 (83.2)71 280 (57.8)
 1–995 478 (37.8)86 991 (91.1)81 243 (85.1)57 501 (60.2)1.23 (1.27 to 1.19)1.15 (1.18 to 1.12)1.10 (1.12 to 1.09)
 10–194953 (2.0)4323 (87.3)4041 (81.6)2664 (53.8)0.83 (0.90 to 0.76)0.90 (0.96 to 0.83)0.85 (0.90 to 0.80)
 20+3660 (1.5)2961 (80.9)2742 (74.9)1809 (49.4)0.51 (0.55 to 0.47)0.61 (0.65 to 0.56)0.71 (0.76 to 0.67)
 Missing24 957 (9.9)
Total number of ED visits age 0–4 years
 None193 905 (76.9)174 354 (89.9)162 942 (84.0)116 460 (60.1)
 1–231 173 (12.4)27 960 (89.7)25 791 (82.7)15 759 (50.6)0.97 (1.01 to 0.93)0.91 (0.94 to 0.88)0.68 (0.69 to 0.66)
 3+2244 (0.9)1980 (88.2)1788 (79.7)1032 (46.0)0.84 (0.96 to 0.74)0.75 (0.83 to 0.68)0.56 (0.61 to 0.52)
 Missing24 957 (9.9)
  • Note: as individuals can identify as multiple ethnicities, counts for ethnic groups will sum to greater than the count for the total population. The reference groups for ethnicities are people not identifying with that ethnic group (eg, Māori is compared with non-Māori.

  • *Nurse=dental, growth, immunisations, parent evaluation of developmental status), SDQ – Parent check.

  • B4SC, B4 School Check; ED, emergency department; GP, general practitioner; SDQ, Strengths and Difficulties Questionnaire; VHT, vision and hearing test.