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. 2019 Nov 30;24(4):793–800. doi: 10.1007/s10029-019-02073-w

Table 3.

Cox regression models predicting time to recurrence for a) bilateral hernias and b) unilateral hernia repairs

Dependent variable Bilateral hernia repair Unilateral hernia repair
HR (95% CI) p value HR (95% CI) p value
Type of operation
 Open Referent Referent
 Laparoscopic 1.76 (1.39, 2.23) < 0.001 1.85 (1.58, 2.16) < 0.001
Age 1.01 (1.00, 1.014) 0.096 1.01 (1.01, 1.01) < 0.001
Gender
 Male Referent Referent
 Female 0.21 (0.05, 0.86) < 0.001 0.44 (0.33, 0.59) < 0.001
Socioeconomic deprivation
 SIMD quintile 1 Referent Referent
 SIMD quintile 2 1.43 (0.94, 2.16) 0.094 1.06 (0.89, 1.26) 0.500
 SIMD quintile 3 1.24 (0.81, 1.88) 0.321 1.04 (0.88, 1.24) 0.654
 SIMD quintile 4 1.45 (0.98, 2.16) 0.066 1.14 (0.96, 1.35) 0.127
 SIMD quintile 5 1.33 (0.89, 1.98) 0.166 1.16 (0.98, 1.38) 0.08
Year of index procedure* 0.97 (0.95, 0.99) 0.008 0.97 (0.97, 0.98) < 0.001

*Since 1996 (the referent year)