Birth length (cm)* Number Mean Median Min Max p All             Children of fishermen 4,986 50.5 51 31 60 0.06 West coast 2,529 50.6 51 33 59 0.0004 East coast 2,289 50.4 51 31 60 0.98 children of referents 17,747 50.4 51 27 60   Boys children of fishermen 2,568 50.9 51 31 60 0.10 West coast 1,332 51.0 51 33 59 0.01 East coast 1,158 50.9 51 31 60 0.97 Children of referents 9,159 50.9 51 30 60   Girls Children of fishermen 2,418 50.1 50 33 58 0.28 West coast 1,197 50.2 50 33 56 0.02 East coast 1,131 50.0 50 35 58 0.88 Children of referents 8,588 50.0 50 27 60   Birth weight (grams)*** All             Children of fishermen 5,010 3,555.7 3,580 665 5,770 0.06 West coast 2,542 3,582.2 3,610 665 5,360 0.0003 East coast 2,300 3,533.7 3,550 670 5,770 0.75 Children of referents 17,843 3,537.9 3,550 405 6,105   Boys Children of fishermen 2,578 3,629.9 3,650 670 5,380 0.06 West coast 1,337 3,653.3 3,680 725 5,360 0.005 East coast 1,163 3,607.1 3,620 670 5,380 0.92 Children of referents 9,207 3,605.1 3,630 565 6,105   Girls Children of fishermen 2,432 3,477.0 3,500 665 5,770 0.42 West coast 1,205 3,503.4 3,550 665 5,240 0.03 East coast 1,137 3,458.8 3,470 890 5,770 0.67 Children of referents 8,636 3,466.3 3,480 405 5,660   *Information is missing for 38 children of fishermen, 152 children of referents. **Information is missing for 14 children of fishermen, 56 children of referents. ***Information is missing for 7 children of fishermen, 55 children of referents. ****Information is missing for 106 children of fishermen, 473 children of referents. Invalid data (<24 cm or >44 cm) for 3 children of fishermen, 28 children of referents.

Table 3: Birth length, birth weight, weeks of pregnancy and head circumference for children of fishermen and children of referents born 1973-1999. Student’s t-test was used to compare children of fishermen (total, west coast and east coast) with children of referents.