Table 4.
Yes | p value | AOR | (95%CI) |
p value |
|||
N | % | ||||||
Age of the mother (years) | ≤ 32 (REF) | 118 | 10.5 | <0.01 | 1.00 | <0.01 | |
>32 | 206 | 16.0 | 1.67 | (1.22 -2.30) | |||
Parity | 0 (REF) | 221 | 15.2 | <0.01 | - | ||
1 | 72 | 10.6 | 0.83 | (0.58 -1.18) | 0.30 | ||
>1 | 31 | 11.4 | 0.92 | (0.55 -1.54) | 0.74 | ||
Years of education of the mother | ≤ 8 years (REF) | 137 | 12.6 | 0.20 | 1.00 | - | |
>8 years | 186 | 14.1 | 1.14 | (0.84 -1.54) | 0.42 | ||
Not known | 1 | 25.0 | NE | - | |||
Country of birth of the mother | Italy (REF) | 283 | 13.8 | 0.23 | 1.00 | - | <0.01 |
Other | 41 | 11.4 | 0.47 | (0.30 0.73) | |||
Gender | Male (REF) | 160 | 12.5 | 0.13 | 1.00 | - | |
Female | 164 | 14.6 | 1.34 | (1.00 1.80) | 0.05 | ||
Year of birth | 2000 (REF) | 9 | 2.8 | <0.01 | 1.00 | - | |
2001 | 22 | 7.0 | 2.48 | (1.02 -6.00) | 0.04 | ||
2002 | 41 | 13.0 | 7.00 | (3.05 -16.02) | <0.01 | ||
2003 | 47 | 13.0 | 9.37 | (4.13 -21.28) | <0.01 | ||
2004 | 73 | 18.4 | 13.88 | (6.23 -30.93) | <0.01 | ||
2005 | 61 | 18.3 | 17.90 | (7.87 -40.67) | <0.01 | ||
2006 | 71 | 19.1 | 18.43 | (8.19 -41.46) | <0.01 | ||
Birth weight (grams) | <1000 (REF) | 76 | 50.0 | <0.01 | 1.00 | - | |
1000-2000 | 209 | 26.6 | 1.22 | (0.75 -1.99) | 0.42 | ||
>2000 | 39 | 2.6 | 0.18 | (0.10 -0.34 | <0.01 | ||
Gestational age (weeks) | <32 (REF) | 221 | 42.8 | <0.01 | 1.00 | - | |
32-35 | 103 | 5.4 | 0.19 | (0.13 -0.27) | <0.01 | ||
Bronchodysplasia | Yes (REF) | 41 | 67.2 | <0.01 | 5.96 | (2.90 -12.26) | <0.01 |
No | 283 | 12.1 | - | ||||
Apgar score | ≤ 7 | 128 | 32.4 | <0.01 | 1.55 | (1.10 -2.19) | 0.01 |
>7 (REF) | 196 | 9.7 | - | ||||
Month of birth | Jan-Mar | 71 | 12.6 | <0.01 | 1.57 | (1.00 -2.45) | 0.05 |
Apr-Jun (REF) | 68 | 11.4 | 1.00 | - | |||
Jul-Sep | 99 | 15.3 | 2.00 | (1.32 -3.03) | <0.01 | ||
Oct-Dec | 86 | 14.4 | 2.12 | (1.38 -3.26) | <0.01 | ||
Congenital heart disease (CHD) | Yes (REF) | 0 | 0.0 | 0.02 | 1.00 | - | |
No | 324 | 13.6 | NE | - | |||
Total | 324 | 13.5 |
AOR: Adjusted odds ratio of administration of Palivizumab; REF: reference group; NE: not estimable