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Table 1 The baseline data of infants in different weight growth patterns

From: A risk factor for early wheezing in infants: rapid weight gain

Variables Group I Group II Group III F/χ2 P
Case (n) 237 243 221   
Age (month, mean ± SD) 3.26 ± 2.52 3.23 ± 1.64 3.54 ± 2.24 1.385 0.251
Gender (n, %)
 Male 163 (68.78) 170 (69.96) 153 (69.23) 0.080 0.961
 Female 74 (31.22) 73 (30.04) 68 (30.77)   
Birth weight (kg, mean ± SD) 3.38 ± 0.43 3.26 ± 0.44# 3.1 ± 0.40*$ 25.708 < 0.001
Weight at admission (kg, mean ± SD) 5.35 ± 1.52 6.33 ± 1.28# 7.24 ± 1.71*$ 87.504 < 0.001
Birth length (cm, mean ± SD) 50.11 ± 1.36 49.85 ± 1.51# 49.59 ± 1.36$ 3.156 0.043
Length at admission (cm, mean ± SD) 58.1 ± 5.89 59.65 ± 5.80# 59.16 ± 6.08 4.224 0.015
Normal weight (n, %) 226 (95.36) 232 (95.47) 214 (96.83) 0.769 0.681
Low weight (n, %) 11 (4.64) 9 (3.70) 3 (1.36) 4.096 0.129
Overweight (n, %) 0 (0.00) 2 (0.82) 4 (1.81) 0.087
Obesity (n, %) 0 0 0   
Family obesity (n, %)
 Yes 49 (20.68) 28# (11.52) 22$ (9.95) 12.910 0.002
 No 188 (79.32) 215 (88.48) 199 (90.05)   
Family wheezing (n, %)
 Yes 14 (6.01) 17 (7.00) 28*$ (12.67) 7.534 0.023
 No 219 (93.99) 226 (93.00) 193 (87.33)   
Individual history of allergy (n, %)
 Yes 55 (23.21) 53 (21.81) 90*$ (40.72) 24.913 < 0.001
 No 182 (76.79) 190 (78.19) 131 (59.28)   
Eczema (n, %)
 Yes 60 (25.32) 70 (28.81) 64 (28.96) 0.996 0.608
 No 177 (74.68) 173 (71.19) 157 (71.04)   
Family allergy (n, %)
 Yes 11 (4.64) 14 (5.76) 53*$ (23.98) 54.086 < 0.001
 No 226 (95.36) 229 (94.24) 168 (76.02)   
Wheezing (n, %)
 Yes 105 (31.16) 128 (52.67) 136$ (61.54) 55.715 < 0.001
 No 232 (68.84) 115 (47.33) 85 (38.46)   
Severe wheezing (n, %)
 Yes 28 (11.81) 34 (13.99) 37 (17.54) 3.011 0.222
 No 209 (88.19) 209 (86.01) 174 (82.46)   
Premier wheezing (n, %)
 Yes 95 (40.08) 111 (45.68) 116$ (95.87) 110.451 < 0.001
 No 142 (59.92) 132 (54.32) 5 (4.13)   
Repeated wheezing (n, %)
 Yes 4 (1.69) 8 (3.29) 12 (5.43) 4.863 0.088
 No 233 (98.31) 235 (96.71) 209 (94.57)   
LOO (days, mean ± SD) 15.86 ± 16.69 14.73 ± 17.14 15.63 ± 18.74 0.276 0.759
LOW (days, mean ± SD) 7.44 ± 10.79 7.26 ± 9.92 11.02 ± 13.35*$ 7.901 < 0.001
LOS (days, mean ± SD) 7.55 ± 3.79 6.65 ± 2.78# 6.78 ± 2.52$ 5.868 0.003
TC (mg/dL, mean ± SD) 120.91 ± 32.46 127.81 ± 34.85# 140.24 ± 38.05*$ 17.69 < 0.001
TG (mg/dL, mean ± SD) 56.49 ± 29.22 50.41 ± 21.96# 56.3 ± 27.45* 4.116 0.017
HDL (mg/dL, mean ± SD) 45.84 ± 19.97 47.47 ± 18.99 47.02 ± 19.47 0.445 0.640
LDL (mg/dL, mean ± SD) 59.03 ± 23.96 59.43 ± 21.84# 67.57 ± 25.80*$ 9.254 < 0.001
Birth-weight Z score −1.50 ± 1.21 −0.18 ± 1.04 0.88 ± 0.99 1.172 0.069
  1. LOO The length of onset, LOW The length of wheezing, LOS The length of stay, TC Total cholesterol, TG Triglyceride, HDL High density lipoprotein, LDL Low density lipoprotein
  2. -: Using Fisher test
  3. #: Group I vs Group II, P < 0.05; *: Group II vs Group III, P < 0.05; $: Group I vs Group III, P < 0.05
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