in trimester one only22 (7.6)64 (32.5)119 (41.3)15 (32.9)210 (37.3)430 (31.1) Drank alcohol throughout pregnancy7 (2.4)51 (25.9)90 (31.6)29 (61.7)284 (50.4)461 (33.3) Total290 (100.0)197 (100.0)288 (100.0)47 (100.0)563 (100.0)1385 (100.0)PAE tier 3 Abstinent throughout pregnancy261 (90.0)82 (41.6)79 (27.4)3 (6.4)69 (12.3)494 (35.7) Low in T1, abstinent in T2 and T312 (4.4)56 (28.4)33 (11.5)5 (10.6)36 (6.4)142 (10.3) Moderate/high in T1, abstinent in T2 and T36 (2.1)5 (2.5)72 (25.0)9 (19.1)78 (13.8)170 (12.2) Binge pre-aware, abstinent in T2 and T34 (1.4)3 (1.5)14 (4.9)1 (2.1)96 (17.0)118 (8.5) Low in T1, low/moderate in T2 and/or T34 (1.4)46 (23.3)31 (10.8)4 (8.5)27 (4.8)112 (8.1) Moderate/high in T1, any level in T2 and/or T31 (0.3)3 (1.5)53 (18.4)21 (44.7)107 (19.0)185 (13.4) Binge pre-aware, low/moderate in T2 and/or T32 (0.7)2 (1.0)6 (2.1)4 (8.5)150 (26.6)164 (11.8) Total290 (100.0)197 (100.0)288 (100.0)47 (100.0)563 (100.0)1385 (100.0) aTotal excludes lifetime abstainers (n = 112) and 73 with irregular patterns, final n = 1385. Due to low numbers in the high level PAE, this category was combined with moderate PAET1, T2, T3: Trimesters 1, 2 and 3Table 3Relationship between early maternal age at onset of drinking and first intoxication and pregnancy alcohol consumption patternsAge at drinking regularlya Age first intoxicatedb > = 18 yrs<18 yrsp chi2c > = 18 yrs<18
