A Cohort Study of Mental Health Services Utilization Following a First Pregnancy Abortion or Birth

Figures & data

Table 1 Data Summary, by Cohort, Pre- and Post-First Pregnancy Outcome

Variable	Abortion (n=1331)		Birth (n=3517)
	Pre	Post	Pre	Post
Outpatients	475	785	1680	2183
Inpatients	42	105	172	233
Months/years of exposure	77.10/6.43	126.90/10.57	93.58/7.80	110.42/9.20
Age first outcome
No pre-use	21.4 yrs		22.6 yrs
Pre-use	23.1 yrs		24.2 yrs
Outpatient visits	14,066	46,103	67,682	113,578
Inpatient admissions	77	334	335	532
Inpatient days	707	3425	3264	3903
OP visit rates*	1.64	3.28	2.47	3.51
IP admission rates	0.0090	0.0237	0.0122	0.0164
IP days rates	0.0826	0.2434	0.1190	0.1206

Note: *Event per patient per year.

Table 2 Risk and Likelihood of Mental Health Utilization; Pre-to-Post First Pregnancy Outcome; Abortion versus Birth

Outpatient Visits
Actual
RR	2.10 [2.08–2.12]
OR	3.36 [3.29–3.42]
X^2	16,114.11, p < 0.0001
Normalized
RR	1.90 [1.87–1.93]
OR	2.35 [2.30–2.40]
X^2	6284.78, p < 0.0001
Inpatient admissions
Actual
RR	2.75 [2.38–3.18]
OR	5.67 [4.39–7.32]
X^2	192.91, p < 0.0001
Normalized
RR	3.05 [2.50–3.71]
OR	4.71 [3.57–6.23]
X^2	129.38, p < 0.0001
Inpatient days of stay
Actual
RR	7.38 [6.83–7.97]
OR	19.64 [17.70–21.78]
X^2	4058.10, p < 0.0001
Normalized
RR	75.13 [56.39–100.08]
OR	147.19 [109.70–197.50]
X^2	4046.48, p < 0.0001

Note: 0.95 confidence interval.

Abbreviations: RR, risk ratio/relative risk; OR, odds ratio; X², Chi-square test.

Figure 1 Outpatient visits per patient per year.

Figure 2 Inpatient admissions per patient per year.

Figure 3 Inpatient days of stay per patient per year.