TABLE 4.
Adjusted hazard ratios of postpartum hospital encounters by hypertensive disorders of pregnancy subtype
| Adjusteda HR (95% CI) |
||||
|---|---|---|---|---|
| Postpartum complication | Gestational hypertension (N=53 372) | Preeclampsia-eclampsia (N=75 819) | Chronic hypertension (N=33 343) | Chronic hypertension with superimposed preeclampsia (N=17 184) |
| Overall | 1.22 (1.18–1.25) | 1.33 (1.30–1.36) | 1.61 (1.56–1.66) | 1.75 (1.69–1.82) |
| Major diagnostic categoriesb | ||||
| Hypertension-related | 6.75 (6.21–7.35) | 8.45 (7.90–9.04) | 19.47 (18.27–20.76) | 25.10 (23.34–26.99) |
| Other, clinically related to childbirth hospitalization | 1.20 (1.15–1.24) | 1.29 (1.25–1.33) | 1.52 (1.46–1.60) | 1.66 (1.56–1.75) |
| Other, not clinically related to childbirth hospitalization | 1.18 (1.13–1.23) | 1.33 (1.28–1.37) | 1.63 (1.56–1.71) | 1.76 (1.67–1.87) |
| Condition-specific diagnostic categoriesc | ||||
| Urinary tract infection | 1.20 (1.23–1.28) | 1.39 (1.32–1.47) | 1.62 (1.50–1.75) | 1.99 (1.81–2.19) |
| Nonspecific postpartum diagnosis | 1.33 (1.24–1.42) | 1.56 (1.48–1.64) | 1.67 (1.55–1.80) | 2.03 (1.86–2.22) |
| Uncontrolled pain | 1.09 (1.01–1.17) | 1.07 (1.01–1.14) | 1.67 (1.55–1.81) | 1.43 (1.29–1.59) |
| Gallbladder disease/Pancreatitis | 1.03 (0.94–1.13) | 1.15 (1.07–1.24) | 1.11 (0.98–1.25) | 1.15 (0.98–1.34) |
| Bleeding risk/complications | 1.50 (1.37–1.65) | 1.84 (1.72–1.97) | 1.64 (1.47–1.82) | 2.10 (1.85–2.38) |
| Perineal complication or surgical wound complication, infection, management | 1.23 (1.13–1.35) | 1.18 (1.10–1.27) | 1.44 (1.30–1.58) | 1.57 (1.40–1.76) |
| Psychiatric disease | 1.22 (1.10–1.36) | 1.41 (1.30–1.53) | 2.87 (2.63–3.13) | 2.65 (2.37–2.97) |
| Breast infections/Lactation complications | 1.00 (0.88–1.13) | 0.98 (0.88–1.10) | 0.92 (0.77–1.11) | 1.03 (0.80–1.32) |
| Cellulitis | 1.24 (1.10–1.40) | 1.03 (0.93–1.14) | 1.66 (1.47–1.87) | 1.46 (1.24–1.71) |
| Fever (unspecified) | 1.16 (1.01–1.34) | 1.32 (1.18–1.48) | 1.41 (1.18–1.68) | 1.37 (1.08–1.75) |
| Hypertensive disorders | 8.58 (7.83–9.41) | 10.40 (9.64–11.22) | 27.61 (25.77 –29.59) | 35.19 (32.54–38.04) |
CI, confidence interval; HR, hazard ratio.
a
Compared to normotensive; adjusted for maternal age category, race/ethnicity, insurance status, prepregnancy obesity, chronic diabetes, gestational diabetes, mode of delivery, gestational age category and birth outcome.
b
See Table 1 for the condition-specific diagnostic categories included in each major category.
c
Ten most common condition-specific diagnostic categories, and hypertensive disorders. See Supplement 3, http://links.lww.com/HJH/B507 for less common diagnoses.