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Table 2 Predictors of LARC use among women using SARC or LARC

From: Retrospective analysis of the impact of increasing access to long acting reversible contraceptives in a commercially insured population

 

Odds Ratioa (95 % CI)

 

All Women (N = 732,430)

All Employeesb (N = 249,021)

Time Period

 Jan 1999–Dec 2000

0.28 (0.24 - 0.33)*

0.24 (0.18 - 0.33)*

 Jan 2001–Jun 2006

1.00

1.00

 Jul 2006–Dec 2012

3.66 (3.57 - 3.74)*

3.63 (3.47 - 3.80)*

 Jan 2013–Mar 2014

6.61 (6.43 - 6.80)*

6.73 (6.37 - 7.10)*

Age group

 15–17 year old

0.55 (0.53 - 0.58)*

-

 18–24 year old

1.00

1.00

 25–34 year old

1.03 (1.00 - 1.05)*

1.29 (1.22 - 1.37)*

 35–44 year old

1.21 (1.18 - 1.24)*

1.63 (1.54 - 1.73)*

Region

 South

1.00

1.00

 Northeast

0.80 (0.79 - 0.82)*

0.88 (0.84 - 0.92)*

 Midwest

0.90 (0.88 - 0.92)*

0.97 (0.93 - 1.00)

 West

1.27 (1.24 - 1.30)*

1.29 (1.24 - 1.34)*

 Unknown region

1.39 (1.35 - 1.44)*

1.20 (1.12 - 1.29)*

Plan type

 Point of Service (POS)

1.00

1.00

 Preferred Provider Organization (PPO)

0.98 (0.95 - 1.01)

0.89 (0.85 - 0.94)*

 Health Maintenance Organization (HMO)

1.05 (1.03 - 1.08)*

0.93 (0.90 - 0.97)*

 Indemnity

1.14 (1.10 - 1.18)*

1.04 (0.98 - 1.12)

 Unknown plan type

1.21 (1.17 - 1.25)*

1.31 (1.23 - 1.38)*

Type of industry

 Technology

-

1.00

 Transportation

-

1.44 (1.36 - 1.52)*

 Financial

-

0.93 (0.88 - 0.98)*

 Manufacture

-

1.07 (1.00 - 1.14)*

 Consumer

-

1.07 (1.01 - 1.13)*

 Government

-

1.57 (1.47 - 1.67)*

 Healthcare

-

0.81 (0.75 - 0.87)*

 Other

-

1.07 (1.02 - 1.12)*

Wage (per 100,000 2014 US$)

-

0.94 (0.90 - 0.98)*

Comorbidities

 Venous thromboembolism

13.50 (6.82 - 26.72)*

22.12 (7.77 - 62.93)*

 Systemic lupus erythematosus

1.90 (1.58 - 2.28)*

1.92 (1.42 - 2.59)*

 Epilepsy

1.92 (1.02 - 3.60)*

1.39 (0.45 - 4.31)

 Hypertension

1.55 (1.48 - 1.63)*

1.63 (1.51 - 1.75)*

 Obesity

1.54 (1.46 - 1.64)*

1.64 (1.50 - 1.79)*

 Asthma

1.25 (1.19 - 1.31)*

1.30 (1.19 - 1.41)*

 Diabetes

1.17 (1.09 - 1.26)*

1.21 (1.08 - 1.36)*

 Rheumatoid arthritis

1.19 (1.04 - 1.35)*

1.22 (0.97 - 1.54)

 Inflammatory bowel disease

1.09 (0.95 - 1.24)

1.17 (0.94 - 1.45)

 Hypothyroidism

1.05 (1.00 - 1.10)*

1.12 (1.04 - 1.21)*

Gynecology history

 History of SARC use

0.08 (0.08 - 0.08)*

0.07 (0.07 - 0.07)*

 History of LARC use

254.14 (248.85 - 259.55)*

310.20 (297.55 - 323.39)*

 History of obstetrician/gynecologist visits

1.75 (1.72 - 1.78)*

1.79 (1.74 - 1.85)*

 Pregnancy history

2.80 (2.74 - 2.85)*

2.32 (2.24 - 2.41)*

 Abortion history

0.98 (0.94 - 1.01)

0.93 (0.87 - 1.00)*

Nulliparous status

 Nulliparous

1.00

1.00

 Non nulliparous

2.29 (2.24 - 2.34)*

2.56 (2.48 - 2.64)*

 Unknown nulliparous status

1.30 (1.15 - 1.47)*

-

  1. aOdds ratios and confidence intervals were obtained using a generalized estimating equation model controlling for all variables listed and adjusting for repeated measurements among patients
  2. bWomen aged 18 or more with employee status and for whom wage was known were considered for this analysis
  3. *Denotes statistical significance compared to the reference (P<0.05)