TABLE 3—

Age Group–Specific Difference-in-Differences Estimates of the Association of DelCAN With the Primary Contraceptive Method Type Used by Adult Family Planning Clients at Risk for Unintended Pregnancy: Delaware, 2008 to 2017

	% Using Method in Delaware During the Preimplementation Period	DD Estimate (SE)	P
Age 20–24 y
Permanent methods	0.4	−0.3 (0.15)	.019
LARCs	5.9	3.2 (2.26)	.023
Moderate methods	48.9	3.3 (4.15)	.23
Less effective methods	26	−3.7 (4.09)	.16
No methods	18.9	−2.5 (4.39)	.18
Age 25–34 y
Permanent methods	3.8	−1.3 (0.71)	.052
LARCs	10.2	3.3 (2.74)	< .001
Moderate methods	46.7	1.4 (4.15)	.46
Less effective methods	25.1	−2.8 (3.95)	.1
No methods	14.1	−0.6 (3.81)	.59
Age ≥ 35 y
Permanent methods	17.2	−3.4 (2.68)	.045
LARCs	7.4	2.9 (2.50)	.016
Moderate methods	30.2	1.0 (4.18)	.62
Less effective methods	27.4	4.8 (3.95)	.06
No methods	17.8	−5.3 (3.92)	.009

Note. DD = difference-in-differences; DelCAN = Delaware Contraceptive Access Now; LARCs = long-acting reversible contraceptives. Each estimate comes from a separate regression. All estimates are weighted by the number of female family planning clients by age group, state, and year. SE accounts for imputation variance and state clustering. P values were obtained from a bootstrap that accounted for state clustering and a single treated cluster. The unweighted sample size was 490 per age group. In Delaware there were an average of 4752 clients aged 20–24 years, 5629 aged 25–34 years, and 2886 aged ≥ 35 years seen per year. In the comparison states there were 1.1 million, 1.3 million, and 0.6 million, respectively. The comparison states were the District of Columbia and all states except Colorado and Texas.

Source. Restricted use versions of the 2008–2017 Title X Family Planning Annual Report; 2008–2017 American Community Survey; Kaiser Family Foundation; and the Guttmacher Institute.