1st Trimester Hb | 3rd Trimester Hb | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Sample | N | mean | SD | IQ | 5/95% | N | mean | SD | IQ | 5/95% | ΔHB(%) |
Total Population | 7054 | 127.9 | 11.2 | 121–134 | 108/143 | 6642 | 113.7 | 10.3 | 107–121 | 96/130 | −14.2(11) |
Population 5th- 95th centile | 6078 | 127.0 | 7.9 | 122–133 | 5745 | 113.0 | 9.5 | 117–120 | −14.4 (11.3) | ||
Subgroup A ƒ | 4224 | 130 | 8.8 | 124–136 | 116/144 | 4028 | 115.6 | 9.2 | 110–122 | 101/131 | −14.4 (11.0) |
Subgroup B ƒƒ | 5876 | 129.4 | 8.8 | 123–135 | 115/144 | 5476 | 114.7 | 9.6 | 109–121 | 99/130 | −14.7(11.4) |
Subgroup C 5th -95th centile &a | 1958 | 128.1 | 7.86 | 123–134 | 115/140 | 1855 | 114.2 | 9.4 | 108–121 | 98/129 | −13.9(10.9) |
Subgroup D 5th–100th centile &a | 2103 | 129.4 | 9.18 | 123–136 | 114/144 | 2035 | 114.8 | 9.75 | 109–121 | 98/130 | −14.6(11.3) |
Subgroup E = < 5 centile &a | 78 | 98.7 | 9.59 | 95–106 | 74/107 | 57 | 108.8 | 12.7 | 99–119 | 89/128 | + 10.1(10.2) |
Subgroup F 5th–95th centile &a | 1303 | 130 | 7.0 | 126–136 | 118.141 | 1303 | 118 | 6.2 | 114–123 | 110/130 | −10.2 (7.8) |
Subgroup EG > 95th centile &a | 145 | 147.8 | 5.07 | 144–149 | 1143/158 | 180 | 121.2 | 11.03 | 114–137 | 103/137 | −26.6(18.0) |