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Table 1 Demographic characteristics by maternal birthplace, n = 842,496 women

From: The provision of epidural analgesia during labor according to maternal birthplace: a Norwegian register study

 Native-bornImmigrants
NorwayHigh-incomeEurope/Central AsiaSub-Saharan AfricaNorth Africa/ Middle EastSouth AsiaEast Asia/ PacificLatin America/ Caribbean
 n%n%n%n%n%n%n%n%
 667,45879.241,4504.941,1854.923,4992.826,7353.222,5851.425,1073.054770.7
Maternal age (years)
  < 2015,3582.34141.06931.75942.56582.51271.12801.11673.0
 20–34540,59581.030,54573.734,64684.118,69279.521,55680.6997486.120,05279.9420776.8
 35–40102,24915.3948722.9527312.8363715.5394614.8133011.5427817.099218.1
  > 4092561.410042.45731.45762.55752.21541.34972.01112.0
Married/Cohabiting618,04292.639,15694.539,11595.017,74475.525,10793.911,11395.923,28492.8489989.4
Paternal birthplace
 Native-born609,30291.327,54066.4961223.322539.615325.7255322.012,28148.9426677.9
 Immigrant49,5867.413,09031.630,32173.617,68975.324,01489.8877575.712,13248.3106119.4
 Missing85701.38202.012523.0355715.111894.42572.26942.81502.7
Maternal education (years)
 Lower (≤10)92,16613.837239.0663016.1994442.310,21538.2397134.3764430.4133124.3
 Middle (11–13)209,53831.4858020.7916122.2374515.9478617.9208918.0561722.4123922.6
 Higher (> 13)364,80954.723,75157.316,92141.1326713.9504718.9291525.2755030.1201936.9
 missing9450.1539613.0847320.6654327.8668725.0261022.5429617.188816.2
Size of obstetric department (births/year)
 1–49974,04011.129127.038069.218657.914525.41821.619237.73897.1
 500–1499155,30823.3618714.9750718.2347314.8302311.34433.8395415.790616.5
 1500–2999175,12826.212,71030.712,05329.3610626.0821330.7282524.4640025.5148427.1
  > 3000262,98239.419,64147.417,81943.312,05551.314,04752.5813570.212,83051.1269849.3
Year of delivery
 2000–2003161,29226.618,90821.2494911.2339313.7519318.0310920.6538719.794315.4
 2004–2007155,21625.620,78423.3709216.0508720.5674323.4361323.9623622.8134722.0
 2008–2011153,24325.224,15827.113,07929.6733029.6788927.4400526.5728326.7182329.8
 2012–2015137,39022.625,17328.319,09543.2896536.2896431.1439329.1840630.8200832.8
Residence time (years)1
  < 2  512412.412,09529.4592825.2692625.9203717.6532121.2117321.4
 2–10  19,84747.923,70957.613,78658.714,24553.3533446.013,65554.4250745.8
  > 10  614214.8528112.8321613.7547520.5364131.4545221.756910.4
 Missing  10,33724.91000.25692.4890.35735.06792.7122822.4
Reason for immigration1
 Refugee  1010.2662116.111,78450.2578621.61861.616626.6931.7
 Labor/education  670316.215,05636.69524.13541.34283.7319512.761311.2
 Family reunification  652915.818,19944.2942540.118,29568.4793868.516,71866.6330460.3
 Other  12,54930.32740.72521.12531.0990.91680.7490.9
 Missing  15,56837.610352.510864.620477.7293425.3336413.4141825.9
  1. 1Immigrants only