Table 2.

Descriptive statistics of pregnancy-desire measures used in the analyses (N=887 women aged 18 or 19, 34,377 observations over 2.5 years in a county in Michigan, United States)

	Mean	Std. Dev.	Min.	Max.
Core measures
Desire to become pregnant	1.20	0.83	1	6
Desire to avoid pregnancy	5.79	0.83	1	6
Differences between core measures
Signed difference	−4.59	1.56	−5	5
Desire to become pregnant - Desire to avoid pregnancy
Absolute difference	4.76	0.94	0	5
Desire to become pregnant - Desire to avoid pregnancy
Products of core measures
Ambivalent continuous	6.43	2.45	1	36
(Desire to become pregnant×desire to avoid pregnancy)
Indifferent continuous	6.49	2.88	1	36
(Reverse-coded desire to become pregnant x Reverse-coded desire to avoid pregnancy)
Pronatal continuous	1.97	4.41	1	36
(Desire to become pregnant×Reverse-coded desire to avoid pregnancy)
Antinatal continuous	34.11	6.79	1	36
(Reverse-coded desire to become pregnant×Desire to avoid pregnancy)
Quadrant-based combinations of core measures
Ambivalent dummy	0.02	0.14	0	1
Indifferent dummy	0.01	0 .10	0	1
Pronatal dummy	0.02	0 .15	0	1
Antinatal dummy	0.92	0 .23	0	1
Antinatal non-pole-cells dummy	0.03	0 .17	0	1
Antinatal poll-cell dummy	0.91	0 .28	0	1

Source: As for Table 1