Table 2.

Summary statistics of adolescents ages 12–18: Brazil, 1977 to 2007

Variable	Brazil				North and Northeast				South and Southeast
	First-born in Families 2+		First- and Second-born in Families 3+		First-born in Families 2+		First- and Second-born in Families 3+		First-born in Families 2+		First- and Second-born in Families 3+
Education	5.10	(2.61)	4.58	(2.58)	4.39	(2.74)	3.92	(2.66)	5.59	(2.40)	5.10	(2.38)
Age	14.63	(1.93)	14.56	(1.90)	14.63	(1.92)	14.54	(1.90)	14.63	(1.93)	14.58	(1.90)
Female	0.47	(0.50)	0.47	(0.50)	0.47	(0.50)	0.47	(0.50)	0.47	(0.50)	0.48	(0.50)
Mother’s Education	5.03	(3.97)	4.16	(3.64)	4.58	(4.09)	3.81	(3.73)	5.27	(3.79)	4.35	(3.45)
Mother’s Age	35.04	(3.45)	35.42	(3.36)	34.83	(3.59)	35.27	(3.47)	35.28	(3.32)	35.62	(3.24)
Father’s Education	4.99	(4.20)	4.17	(3.91)	4.21	(4.21)	3.51	(3.86)	5.49	(4.05)	4.62	(3.78)
Father’s Age	40.18	(7.07)	40.94	(7.22)	40.23	(7.12)	41.03	(7.03)	40.14	(7.19)	40.83	(7.59)
Per Capita Family Incomea	556.85	(1,439.34)	370.10	(1,127.17)	483.58	(1,244.33)	340.86	(997.72)	578.81	(1,456.43)	380.67	(1,164.87)
Number of Siblings	2.59	(1.72)	3.47	(1.71)	3.00	(1.94)	3.85	(1.89)	2.31	(1.49)	3.19	(1.49)
Twins in the Family	0.018	(0.13)	0.024	(0.15)	0.019	(0.14)	0.023	(0.15)	0.018	(0.13)	0.025	(0.16)
Twins at Second Birth	0.006	(0.08)	0.005	(0.07)	0.005	(0.07)	0.004	(0.07)	0.007	(0.08)	0.006	(0.08)
Twins at Third Birth	0.005	(0.07)	0.007	(0.09)	0.005	(0.07)	0.006	(0.08)	0.005	(0.07)	0.008	(0.09)
Urban	0.78	(0.41)	0.75	(0.43)	0.73	(0.44)	0.69	(0.46)	0.82	(0.39)	0.78	(0.41)
North	0.09	(0.29)	0.10	(0.30)	–		–		–		–
Northwest	0.28	(0.45)	0.31	(0.46)	–		–		–		–
South	0.17	(0.38)	0.16	(0.36)	–		–		–		–
Southwest	0.32	(0.47)	0.30	(0.46)	–		–		–		–
Center-West	0.13	(0.33)	0.13	(0.33)	–		–		–		–
N	227,601		269,405		86,111		111,258		112,467		123,728

Note: Standard deviations are in parentheses.

Sources: 1977–2007 PNAD data. IBGE (National Household Sample Survey).

^aIn 2001 Reais.