Table 4:
Unadjusted Cost (US Dollars) Stratified by Gestational Age and Birthweight
| TOTAL | FERTILE (F) | SUBFERTILE (S) | ART (A) | P-value S vs F |
P-value A vs F |
P-value A vs S |
Overall P-value |
||
|---|---|---|---|---|---|---|---|---|---|
| N=345,756 | N= 332,481 | N = 4,987 | N = 8,288 | ||||||
| Overall | Mean (SE) median (IQR) |
3,021 (27) 1,011 (676, 1599) |
2,980 (6) 1,005 (671, 1589) |
3,271 (58) 1,051 (703, 1675) |
4,483 (62) 1,252 (834, 1973) |
<0.0001 | <0.0001 | <0.0001 | <0.0001 |
| Gestational Age | |||||||||
| 23–27 wks | N (kids) Mean (SE) median (IQR) |
792 186,789 (4140) 158,857 (107179, 237725) |
739 187,987 (3791) 159,225 (107581, 238337) |
15 157,306 (22267) 138,217 (100437, 226065) |
38 175,141 (15576) 145,565 (95207, 222134) |
0.21 | 0.44 | 0.52 | 0.37 |
| 28–33 wks | N (kids) Mean (SE) median (IQR) |
4210 49,855(801) 33,445 (18822, 62101) |
3925 49,778 (653) 33,398 (18822, 61802) |
87 42,990 (3789) 29,239 (18186, 52743) |
198 54,404 (3178) 34,858 (19719, 72518) |
0.1 | 0.14 | 0.026 | 0.082 |
| 34–36 wks | N (kids) Mean (SE) median (IQR) |
16760 7,559 (165) 2,027 (986, 7776) |
15836 7,540 (77) 2,000 (975, 7730) |
305 6,396 (469) 2,269 (1121, 6712) |
619 8,610 (443) 2,453 (1284, 9151) |
0.026 | 0.012 | 0.0009 | 0.003 |
| 37–38 wks | N (kids) Mean (SE) median (IQR) |
72491 2,036 (35) 984 (659, 1543) |
69285 2,038 (8) 977 (655, 1534) |
1242 2,078 (61) 1,029 (689, 1560) |
1964 1,932 (45) 1,223 (797, 1811) |
0.52 | 0.025 | 0.054 | 0.066 |
| ≥39 wks | N (kids) Mean (SE) median (IQR) |
251503 1,639 (16) 977 (664, 1503) |
242696 1,632 (3) 972 (661, 1496) |
3338 1,702 (27) 996 (679, 1539) |
5469 1,938 (24) 1,178 (807, 1755) |
0.0076 | <0.0001 | <0.0001 | <0.0001 |
| Birthweight | |||||||||
| ≤1000 g | N (kids) Mean (SE) median (IQR) |
919 178,605 (3799) 148,682 (100769, 226913) |
860 179,030 (3516) 148,734 (101607, 227824) |
18 148,398 (20147) 127,062 (89687, 202262) |
41 182,955 (16458) 169,998 (110765, 222134) |
0.17 | 0.81 | 0.20 | 0.40 |
| 1001–1500 g | N (kids) Mean (SE) median (IQR) |
1458 72,615 (1576) 57,268 (35781, 91955) |
1366 72,361 (1320) 56,827 (35855, 91948) |
22 74,065 (10648) 55,428 (39791, 86220) |
70 77,123 (6216) 63,514 (31985, 95168) |
0.87 | 0.44 | 0.81 | 0.73 |
| 1501–2500 g | N (kids) Mean (SE) median (IQR) |
16579 11,930 (209) 2,688 (1078, 13196) |
15770 11,804 (127) 2,625 (1069, 12991) |
285 12,495 (1002) 4,278 (1317, 16474) |
524 15,412 (912) 5,507 (1391, 17872) |
0.48 | <0.0001 | 0.035 | <0.0001 |
| ≥2501 g | N (kids) Mean (SE) median (IQR) |
326800 1,764 (15) 983 (664, 1522) |
314485 1,755 (3) 977 (660, 1514) |
4662 1,812 (25) 1,021 (684, 1568) |
7653 2,114 (23) 1,204 (815, 1825) |
0.022 | <0.0001 | <0.0001 | <0.0001 |
Mean length of stay (days) and Standard Error (SE) represent the unadjusted model using gamma distribution; IQR (Inter Quartile Range)